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EUROSITE POWER INC. - 10-K - Management's Discussion and Analysis of Financial Condition and Results of Operations.
[April 01, 2013]

EUROSITE POWER INC. - 10-K - Management's Discussion and Analysis of Financial Condition and Results of Operations.


(Edgar Glimpses Via Acquire Media NewsEdge) You should read the following discussion and analysis of our financial condition and results of operations together with our financial statements and related notes appearing elsewhere in this Annual Report on Form 10-K. Some of the information contained in this discussion and analysis or set forth elsewhere in this Annual Report on Form 10-K, including information with respect to our plans and strategy for our business, includes forward-looking statements that involve risks and uncertainties. You should review "Item 1A. Risk Factors" beginning on page 10 of this Annual Report on Form 10-K for 17-------------------------------------------------------------------------------- Table of Contents EUROSITE POWER INC.

Item 1. Business.

General EuroSite Power Inc., or the Company, we, our or us, has been organized to distribute, own and operate clean, on-site energy systems that produce electricity, hot water, heat and cooling in the United Kingdom and Europe. Our business model is to own the equipment that we install at customers' facilities and to sell the energy produced by these systems to the customers on a long-term contractual basis at prices guaranteed to the customer to be below conventional utility rates. We call this business the EuroSite Power "On-Site Utility". As of December 31, 2011, the Company did not have any installations in the United Kingdom or Europe.

The Company was incorporated as a Delaware corporation on July 9, 2010 and is currently an 82.8% subsidiary of American DG Energy Inc., or American DG Energy.

American DG Energy is an onsite energy company that sells energy in the form of electricity, heat, hot water and air conditioning under long-term contracts with commercial, institutional and light industrial customers in the United States.

EuroSite Power plans to introduce the American DG Energy business model to the United Kingdom and Europe.

On September 17, 2010, the Company registered as a wholly-owned subsidiary EuroSite Power Limited with the Registrar of Companies for England and Wales, to introduce the American DG Energy business model to the United Kingdom only. As the Company grows beyond the United Kingdom into other parts of Europe, it is expected that it will set up separate wholly-owned subsidiaries to do business in those countries. We currently estimate that our first revenues from equipment installations in the United Kingdom and the European market will be generated by the fourth quarter of 2012. The Company's website is at www.eurositepower.co.uk, but our website address included in this Annual Report is a textual reference only and the information in the website is not incorporated by reference into this Annual Report.

The Company has three affiliated companies, namely Tecogen Inc., or Tecogen, Ilios Inc., or Ilios, and GlenRose Instruments Inc., or GlenRose Instruments.

These companies are affiliates because several of the major shareholders of American DG Energy, the Company's corporate parent, have significant ownership positions in Tecogen, Ilios and GlenRose Instruments. Tecogen, Ilios and GlenRose Instruments do not own any shares of the Company, and the Company does not own any shares of Tecogen, Ilios or GlenRose Instruments. The common shareholders include John N. Hatsopoulos, who is the Chairman of the Company and GlenRose Instruments, the Chief Executive Officer and director of American DG Energy and Tecogen, and a director of Ilios. Also, Dr. George N. Hatsopoulos, who is John N. Hatsopoulos' brother, is the Chairman of American DG Energy, a director of Tecogen and an investor in GlenRose Instruments and Ilios.

Tecogen is a leading manufacturer of combined heat and power products, or CHP, including natural gas engine-driven cogeneration and air conditioning systems for industrial and commercial use. Ilios is a subsidiary of Tecogen that was formed in April 2009 to develop and distribute a line of ultra-high-efficiency heating products, such as a high efficiency water heater, that provide twice the efficiency of conventional boilers, based on management estimates, for commercial and industrial applications utilizing advanced thermodynamic principles. American DG Energy and EuroSite Power purchase energy equipment from various suppliers. The primary types of equipment used are natural gas engine-driven cogeneration and air conditioning systems provided by Tecogen and Ilios. Both Tecogen and American DG Energy will distribute the Ilios products.

The business of GlenRose Instruments is not related to the business of American DG Energy, the Company and their other corporate affiliates.

In July 2011, the Company hired a Managing Director in the United Kingdom to put together a sales and marketing team in order to generate revenues from equipment installations. As of the date of this Annual Report on Form 10-K, the Company did not have any operations, has not generated revenues or sold any energy systems.

When we commence operations, our On-Site Utility will supply electricity, heat, hot water and cooling at a discounted price to properties such as healthcare facilities, hotels, large, multi-family housing, leisure centers, schools and colleges. The Company's natural gas-powered cogeneration systems will produce electricity from an internal combustion engine that drives a generator, while the heat from the engine and exhaust is recovered and typically used to produce heat and hot water for use at the site. The Company will also distribute and operate water chiller systems for building cooling applications that operate in a similar manner, except that the engine's power drives a large air-conditioning compressor while recovering heat for hot water. Cogeneration systems reduce the amount of electricity that the customer must purchase from the local utility at a higher cost, and produce valuable heat and hot water for the site to use as required. By simultaneously providing electricity, hot water and heat, cogeneration systems also have a significant, positive impact on the environment by reducing the carbon or CO2 produced. Reliability is also enhanced because the customer remains connected to the electric grid and the failure of either source of electricity does not result in a power outage.

EUROSITE POWER INC.Distributed Generation of electricity, or DG, is often referred to as cogeneration, or combined heat and power systems, or CHP. DG is an attractive option for reducing energy costs and increasing the reliability of available energy. DG has been successfully implemented by others in large industrial installations over 10 Megawatts, or MW, where the market has been growing for several years, and is increasingly being accepted in the smaller size installations that we target because of technology improvements, increased energy costs and better DG economics. We believe that our target market (users of up to 1 MW) has barely been penetrated in the United Kingdom and Europe and that the reduced reliability of the utility grid, increasing cost pressures experienced by energy users, advances in new, low-cost technologies and DG-favorable legislation and regulation may drive the Company's near-term growth and penetration into its target market.

The following is a summary of the reasons why we believe that the United Kingdom and European markets are attractive: Our target countries (beginning with the United Kingdom, to be followed by Spain and Belgium) have large, urban markets with a high local density of target customers with large buildings in major cities (including hotels, healthcare facilities and large multi-family residential buildings).

Significant incentives, rebates and support are available for the installation and operation of CHP systems in Europe.

Government policy in Europe currently favors energy-efficient and environmentally friendly technologies and businesses.

Other companies deploying CHP systems have generated revenue from the environmental and carbon benefits of their systems.

Electricity prices are expected to increase significantly in Europe in the coming years.

The competition is focused on larger systems (both in footprint size and in kilowatts, or energy size). Our inverter-based InVerde 100-kW is small enough to fit into smaller buildings and has the proper energy production to match more buildings based on hot water needs. We expect to offer the only inverter-based CHP on the market.

Our potential customers are aware of and seeking energy- and environmentally- friendly solutions. However, capital budgets have shrunk or disappeared. The On-Site Utility approach requiring no customer capital might fit the market needs well.

Our sales model will target the top property owners with suitable operations for our On-Site Utility. Our direct sales team, advisory board and sales partners will be selected to target these customers.

Due to the slowdown in the economy, we will have many options to select technical partners to aid in installing and maintaining the energy systems.

These will range from existing competitors to mechanical contractors.

We expect, at the outset, to use our domestic systems (in the United States) to handle items such as system monitoring and customer billing.

There should be a special opportunity and advantage to sell cogeneration equipment running on natural gas in central London and in Europe because these areas already have electrical capacity connection constraints such that a natural gas chiller is likely to provide better economics to the customer and may reduce dependence on the electrical grid for other usages in the building.

With the additional introduction of the Ilios high efficiency water heater in the first half of 2012, and the introduction of the Low Emissions Technology in August of 2011, developed by Tecogen we expect to market a full array of highly innovative, efficient, and low emissions technologies to produce, electricity, hot water, heat and cooling.

CHP is already widely supported by governments in the European Union with many forms of government assistance provided to promote its use. In the European Union countries, CHP is widely viewed as a key measure to enable achievement of target reductions in greenhouse gas emissions. Legislation forcing companies to reduce their carbon footprint is having a large impact on CHP sales; there are also planning laws which force new building owners to provide at least 10% of their power supply from renewable sources (CHP is deemed renewable from a planning perspective). For example, the London Energy plan specifically supports and promotes CHP as a technology. We believe that our primary near-term opportunity for distributed generation energy and equipment sales is where commercial electricity rates exceed $0.12 per kW hour, or kWh. Attractive DG economics are currently attainable in applications that include hospitals, nursing homes, multi-tenant residential housing, hotels, schools and colleges, recreational facilities, food processing plants, dairies and other light industrial facilities.

When we commence operations we will purchase energy equipment from various suppliers. The primary type of equipment used will be a natural gas-powered, reciprocating engine provided by Tecogen, a leading manufacturer of natural gas engine-driven commercial and industrial cooling and cogeneration systems that are suitable for a variety of applications. A CHP system simultaneously produces two types of energy - heat and electricity - from a single fuel source, often natural gas. The two key components of a CHP system are an internal combustion reciprocating engine and an electric generator. The internal combustion reciprocating engine is provided to Tecogen by General Motors Company modified to run on natural gas and is a low-cost, mass-produced, internal combustion engine that is used primarily in light trucks and sport utility vehicles. The clean natural gas fired engine spins a generator to produce electricity. The natural byproduct of the working engine is heat. The heat is captured and used to supply space heating, heating domestic hot water, laundry hot water or to provide heat for swimming pools and spas.

EUROSITE POWER INC.The Company will also purchase energy equipment from Ilios. Based on management estimates, the equipment developed by Ilios, such as a high efficiency water heater, provides twice the efficiency of conventional boilers for commercial and industrial applications utilizing advanced thermodynamic principles. The Ilios products incorporate mechanical work to extract heat from the environment in order to supplement the chemical energy available in the fuel. The result is a significant boost in efficiency and reduction in carbon emissions.

As other power sources that use alternative energy technologies mature to the point that they are reliable and economical, we may consider employing them to supply energy for our customers. We regularly assess the technical, economic, and reliability issues associated with systems that use solar, micro-turbine or fuel cell technologies to generate power.

The Company and its Affiliates American DG Energy, GlenRose Instruments, Tecogen and Ilios, are affiliated companies by virtue of common ownership. Specifically, John N. Hatsopoulos who is the Chairman of the Company is: (a) the Chief Executive Officer and director of American DG Energy and holds 12.2% of the company's common stock, (b) the Chief Executive Officer and director of Tecogen and holds 27.6% of the company's common stock, (c) a director of Ilios and holds 7.3% of the company's common stock, and (d) the Chairman of GlenRose Instruments and holds 15.7% of the company's common stock. Dr. George N. Hatsopoulos, who is John N. Hatsopoulos' brother, is: (a) a director of American DG Energy and holds 14.7% of the company's common stock, (b) a director of Tecogen and holds 26.2% of the company's common stock, (c) an investor in Ilios and holds 2.9% of the company's common stock and (d) an investor of GlenRose Instruments and holds 15.7% of the company's common stock.

Background and Market The delivery of energy services to commercial and residential customers has evolved over many decades into an inefficient and increasingly unreliable structure. Power for lighting, air conditioning, refrigeration, communications and computing demands comes almost exclusively from centralized power plants serving users through a complex grid of transmission and distribution lines and substations. Even with continuous improvements in central station generation and transmission technologies, today's power industry according to the Energy Information Administration is only about 33% efficient, meaning that it discharges to the environment roughly twice as much heat as the amount of electrical energy delivered to end-users. Since coal accounts for a large part of electric power generation, these inefficiencies are a major contributor to rising atmospheric CO2 emissions. Countermeasures being sought to limit global warming are expected to favor the deployment of alternative energy technologies.

Most thermal energy for space heating and hot water services is produced by on-site boilers and furnaces that burn either natural gas or petroleum distillate fuels. This separation of thermal and electrical energy supply services has persisted despite a general recognition that CHP can be significantly more energy efficient than central generation of electricity only.

Except in large-scale industrial applications (e.g., paper and chemical manufacturing), cogeneration has not attained general acceptance. This has been due, in part, to the long-established monopoly-like structure of the regulated utility industry. Also, the technologies previously available for small on-site cogeneration systems were incapable of delivering the reliability, cost and environmental performance necessary to displace or even substantially modify the established power industry structure.

The Role of Distributed Generation Distributed Generation is the production of two sources or two types of energy (electricity or cooling and heat) from a single energy source (natural gas). We will use technology that utilizes a low-cost, mass-produced, internal combustion engine from General Motors, used primarily in light trucks and sport utility vehicles that is modified to run on natural gas. The engine spins either a standard generator to produce electricity, or a conventional compressor to produce cooling. For heating, since the working engine generates heat, we capture the byproduct heat with a heat exchanger and utilize the heat for facility applications in the form of space heating and hot water for buildings or industrial facilities. This process is very similar to an automobile, where the engine provides the motion to the automobile and the byproduct heat is used to keep the passengers warm during the winter months. For refrigeration or cooling, standard available equipment uses an electric motor to spin a conventional compressor to make cooling. We will replace the electric motor with the same modified engine that runs on natural gas to spin the compressor to run a refrigeration cycle and produce cooling.

EUROSITE POWER INC.Distributed generation refers to the application of small-scale energy production systems, including electricity generators, at locations in close proximity to the end-use loads that they serve. Integrated energy systems, operating at user sites but interconnected to existing electric distribution networks, can reduce demand on the nation's utility grid, increase energy efficiency, avoid the waste inherent in long distance wire and cable transmission of electricity, reduce air pollution and greenhouse gas emissions, and protect against power outages, while,in most cases, significantly lowering utility costs for power users and building operators.

Until recently, many DG technologies have not been a feasible alternative to traditional energy sources because of economic, technological and regulatory considerations. Even now, many "alternative energy" technologies (such as solar, wind, fuel cells and micro-turbines) have not been sufficiently developed or proven to economically meet the demands of commercial users or the ability to be connected to the existing utility grid.

When we commence operations we intend to supply cogeneration systems that are capable of meeting the demands of commercial users and that can be connected to the existing utility grid. Specific advantages of the Company's On-Site Utility approach of multiple energy services, compared with traditional centralized generation and distribution of electricity alone, include the following: Greatly increased overall energy efficiency (up to 90% versus less than 33% for the existing power grid), according to the Environmental and Energy Study Institute, or EESI1.

Rapid adaptation to changing demand requirements (e.g., weeks, not years to add new generating capacity where and when it is needed).

Ability to by-pass transmission line and substation bottlenecks in congested service areas.

Avoidance of site and right-of-way issues affecting large-scale power generation and distribution projects.

Clean operation, from using natural gas fired reciprocating engines using microprocessor combustion controls and low-cost exhaust catalyst technology developed for automobiles.

Rapid economic paybacks for equipment investments, often three to five years when compared to existing utility costs and technologies.

Relative insensitivity to fuel prices due to high overall efficiencies achieved with cogeneration of electricity and thermal energy services, including the use of waste heat to operate absorption type air conditioning systems (displacing electric-powered cooling capacity at times of peak summer demand).

Reduced vulnerability of multiple de-centralized small-scale generating units compared to the risk of major outages from natural disasters or terrorist attacks against large central-station power plants and long distance transmission lines.

Ability to remotely monitor, control and dispatch energy services on a real-time basis using advanced switchgear, software, microprocessor and internet modalities. Through our on-site energy products and services, energy users will be able to optimize, in real time, the mix of centralized and distributed electricity-generating resources.

Also, DG systems possess significant positive environmental impact. The United States Environmental Protection Agency, or EPA, has created a Combined Heat and Power Partnership to promote the benefits of DG systems. The Company is a member of this Partnership. The following statement is found on the EPA web site.

"Combined heat and power systems offer considerable environmental benefits when compared with purchased electricity and onsite-generated heat. By capturing and utilizing heat that would otherwise be wasted from the production of electricity, CHP systems require less fuel than equivalent separate heat and power systems to produce the same amount of energy. Because less fuel is combusted, greenhouse gas emissions, such as carbon dioxide (CO2), as well as criteria air pollutants like nitrogen oxides (NOx) and sulfur dioxide (SO2), are reduced.2" The disadvantages of the Company's On-Site Utility are: Cogeneration is a mechanical process and our equipment will be susceptible to downtime or failure.

1 See Environmental and Energy Study Institute (EESI), Energy Generation and Distribution Efficiency, http://www.eesi.org/generation_distribution. This website address and any other website addresses included in this Annual Report on Form 10-K are included as textual references only and the information in such websites is not incorporated by reference into this Annual Report on Form 10-K.

2 See: http://epa.gov/chp/basic/environmental.html. This website address and any other website addresses included in this Annual Report on Form 10-K are included as textual references only and the information in such websites is not incorporated by reference into this Annual Report on Form 10-K.

EUROSITE POWER INC.

The base-rate of an electric utility is determined by a certain number of subscribers. DG at a significant scale may reduce the number of subscribers and therefore it may increase the base-rate for the electric utility for its customer base.

By committing to our long-term agreements, a customer may be forfeiting the opportunity to use more efficient technology that may become available in the future.

The DG Market Opportunity We believe that our primary near-term opportunity for DG energy and equipment sales is where commercial electricity rates exceed $0.12 per kWh. Attractive DG economics in the United Kingdom and Europe are currently attainable in applications that include hospitals, nursing homes, multi-tenant residential housing, hotels, schools and colleges, recreational facilities, food processing plants, dairies and other light industrial facilities.

Early in 2010, American DG Energy performed a feasibility study of the European market to determine the viability of expanding its On-Site Utility business into Europe. This study and business plan report reached the conclusions that: (a) there is untapped customer demand to provide small-scale CHP packages in the commercial sector through a fully financed, output-based electricity and hot water contract, (b) there is a lack of competition in this space in the target customer segments (hotel, healthcare and multi-tenant residential) and (c) the underlying economic fundamentals are attainable, with a combination of sufficient spark spreads and government fiscal support.

The study analyzed the entire European market; however it focused on the United Kingdom, Spain and Belgium as the primary markets to start operations. The study estimated that there are over 13,700 sites in those three countries providing a $900 million annual electricity market plus a $600 million heat and hot water energy market, for a combined market potential of $1.5 billion. The data used to calculate the Company's market potential is derived by Company estimates.

However, our business model is untested in the United Kingdom and Europe, and we have not installed any equipment there and have no customer contracts there. It is extremely difficult to predict whether we will achieve any success in developing our business. There can be no assurance that we will generate revenues or that revenues will generate profits or be sufficient to maintain our business. American DG Energy, our parent, has experienced total net losses since inception of approximately $17.9 million. For the foreseeable future, we expect to experience continuing operating losses and negative cash flows from operations as our management attempts to execute our current business plan." Business Model Our parent, American DG Energy is an onsite energy company that sells energy in the form of electricity, heat, hot water and air conditioning under long-term contracts with commercial, institutional and light industrial customers. We intend to implement our parent's business strategy in the United Kingdom and Europe by installing our systems at no cost to our customers and retaining ownership of the system. Because our systems may operate at up to 90% efficiency, according to the EESI (versus less than 33% for the existing power grid), we expect to be able to sell the energy produced by these systems to our customers at prices below their existing cost of electricity (or air conditioning), heat and hot water. Our cogeneration systems will consist of natural gas-powered internal combustion engines that drive an electrical generator to produce electricity and that capture the engine heat to produce space heating and hot water. Our energy systems may also be configured to drive a compressor that produces air conditioning and that also captures the engine heat.

To date, American DG Energy's installations all run in conjunction with the electric utility grid and require standard interconnection approval from the local utility. Our customers use both our energy system and the electric utility grid for their electricity requirements. We will typically supply the first 20% to 60% of the building's electricity requirements while the remaining electricity is supplied by the electric utility grid. Our customers will be contractually bound to use the energy we supply.

To date, the price that American DG Energy has charged its customers is set forth in customer contracts at a discount to the price of the building's local electric utility. For the 20% to 60% portion of the customer's electricity that is supplied, the customer realizes immediate savings on its electric bill. In addition to electricity, it sells the heat and hot water at the same price the customer was previously paying or at a discount equivalent to the customer's discount on electricity. Air conditioning systems are also priced at a discount so that the customer realizes overall cost savings from the installation.

Since we intend to own and operate the energy systems and since customers have no investment in the units, we expect that our customers will benefit from no capital requirements and no operating responsibilities. We will operate the energy systems so our customers require no staff and have no energy system responsibilities; they are bound, however, to pay for the energy supplied by the energy systems over the term of the agreement.

EUROSITE POWER INC.Energy and Products Portfolio We will provide the same full range of CHP product and energy options that are provided by American DG Energy, including: Energy Sales Energy Producing Products Turnkey Installation Energy Producing Products with Incentives Other Revenue Opportunities Energy Sales For customers seeking an alternative to the outright purchase of CHP equipment, we will install, maintain, finance, own and operate complete on-site CHP systems that supply, on a long-term, contractual basis, electricity and other energy services. Our business model is to sell the energy to customers at a guaranteed discount rate to the rates charged by conventional utility suppliers. Customers will be billed monthly and benefit from a reduction in their current energy bills without the capital costs and risks associated with owning and operating a cogeneration or chiller system. Also, by outsourcing the management and financing of on-site energy facilities to us, they will reap the economic advantages of DG without the need for retaining specialized in-house staff with skills unrelated to their core business. Customers will benefit from our On-Site Utility in a number of ways: Guaranteed lower price for energy Only pay for the energy they use No capital costs for equipment, engineering and installation No equipment operating costs for fuel and maintenance Immediate cash flow improvement Significant green impact by the reduction of carbon produced No staffing, operations and equipment responsibility Our customers will pay us for energy produced on site at a rate that is a certain percentage below the rate at which the utility companies provide them electrical and natural gas services. We will measure the actual amount of electrical and thermal energy produced, and charge our customers accordingly. We intend to install, operate, maintain and repair our energy systems at our sole cost and expense. We also intend to obtain any necessary permits or regulatory approvals at our sole expense. Our agreements will generally be for a term of 15 years, renewable for two additional five years terms upon the mutual agreement of the parties.

In regions where high electricity rates prevail, monthly payments for CHP energy services can yield attractive paybacks (e.g. often 3-5 years) on our investments in On-Site Utility projects. We expect the price of natural gas to have a minor effect on the financial returns obtained from our energy service contracts because the value of hot water and other thermal services produced from the recovered heat generated by the internal combustion engine in our On-Site Utility system will increase in proportion to higher fuel costs. This recovered energy, which comprises up to 60% of the total heating value of fuel supplied to the CHP equipment, displaces fuel that would otherwise be burned in conventional boilers.

Energy Producing Products We intend to offer cogeneration units sized to produce 100 kW of electricity, water chillers sized to produce 200 to 400 tons of cooling and high efficiency water heaters. For cogeneration, we prefer a modular design approach to allow us to group multiple units together to serve customers with considerably larger power requirements. Often, cogeneration units are conveniently dispersed within a large operation, such as a hospital or campus, serving multiple process heating systems that would otherwise be impractical to serve from a single large machine. The equipment we select often yield overall energy efficiencies in excess of 80% (from our equipment supplier's specifications).

EUROSITE POWER INC.We will also purchase energy equipment that incorporates mechanical work to extract heat from the environment in order to supplement the chemical energy available in the fuel. The result of that equipment is a significant boost in efficiency and carbon emissions benefit relative to conventional heating systems.

Many other DG technologies are challenged by technical, economic and reliability issues associated with systems that generate power using solar, micro-turbine or fuel cell technologies, which have not yet proven to be economical for typical customer needs. As other power sources that use alternative energy technologies mature to the point that they are reliable and economical, we may consider employing them to supply energy for our customers.

Service and Installation Where appropriate, we intend to utilize the best local service infrastructure for the equipment we deploy. We will require long-term maintenance contracts and ongoing parts sales. Our centralized remote monitoring capability will allow us to keep track of our equipment in the field. Our installations will be performed by local contractors with experience in energy cogeneration systems.

For the occasional customers that want to own the CHP system themselves, we will offer our "turn-key" option whereby we will sell equipment and provide systems engineering, installation, interconnect approvals, on-site labor and startup services needed to bring the complete CHP system on-line. For some customers, we will also require a fee to operate the systems and may receive a portion of the savings generated from the equipment.

Other Funding and Revenue Opportunities The Company may be able to participate in the demand response market and receive payments due to the availability of its energy systems when operations commence.

Demand response programs provide payments for either the reduction of electricity usage or the increase in electricity production during periods of peak usage throughout a utility territory. Since our systems are highly efficient, when we commence operations, we may be able to participate in various carbon reduction markets. We are currently not involved in any such activity as described above.

Sales and Marketing We intend to offer cogeneration units sized to produce 100 kW of electricity and water chillers sized to produce 200 to 400 tons of cooling. Our On-Site Utility services will be sold directly to end-users by our in-house marketing team and by established sales agents and representatives. In July 2011, we hired a Managing Director in the United Kingdom to put together a sales and marketing team in order to generate revenues from equipment installations. We will also hire service and support staff, but do not expect to expend significant funds in filling those positions. As of the date of this Annual Report on Form 10-K, the Company did not have any operations, has not generated revenues or sold any energy systems.

Our On-Site Utility services will be sold directly to end-users by our in-house marketing team and by established sales agents and representatives. We will offer standardized packages of energy, equipment and services suited to the needs of property owners and operators in healthcare, hospitality, large residential, athletic facilities and certain industrial sites. This includes national accounts and other customer groups having a common set of energy requirements at multiple locations.

Our energy offering is translated into direct financial gain for our clients, and is best appreciated by senior management. These clients recognize the gain in cash flow, the increase in net income and the preservation of capital we offer. As such, our energy sales will be focused on reaching these decision makers.

We also intend to expand our sales efforts by developing joint marketing initiatives with key industry suppliers. Particularly important will be collaborative programs with natural gas utility companies. Since the economic viability of any CHP project is critically dependent upon effective utilization of recovered heat, the insight of the gas supplier to the customer energy profile is particularly effective in prospecting the most cost-effective DG sites in any region.

DG is currently enjoying growing support among utility regulators seeking to increase the reliability of electricity supply with cost effective environmentally responsible demand-side resources. Many European countries encourage DG through inter-connecting standards, incentives and/or supply planning. Unlike large central station power plants, DG investments can be made in small increments and with lead-times as short as just a few months.

European governments are developing and refining various funding opportunities related to economic incentives and programs for DG operators. Our CHP systems may fit very well with these programs. Other than funding opportunities related to incentives and programs, there does not appear to be any new government regulations that will affect us.

EUROSITE POWER INC.

Competition We believe that the main competition for DG products is the established electric utility infrastructure. DG is beginning to gain acceptance in regions where energy customers are dissatisfied with the cost and reliability of traditional electricity service. These end-users, together with growing support from regulators, are creating a favorable climate for the growth of DG that is overcoming the objections of established utility providers. Those companies are much larger than us in terms of revenues, assets and resources. We expect to compete with large utility companies by selling its electricity to the same commercial building customers at a lower price. We will sell directly to each building customer, but typically only supply 20%-60% of the electricity needs of the building. The remaining portion will be supplied by the electric utility.

In the United Kingdom, we will primarily compete with Cogenco Limited, a subsidiary of Dalkia PLC, an alternative energy company with customers in the 50-500 kW range, ENER-G Holdings plc and Jenbacher, a subsidiary of General Electric Company. Other companies in the same market are Clarke Energy Ltd, EC Power Systems and Baxi-SenerTec UK. In Belgium, most CHP equipment manufacturers are non-Belgian companies, including CogenGreen S.A., Capstone Turbine Corporation and Cummins Power Generation Inc., which will be our primary competitors in the 50-500 kW range. In Spain, we will compete with Baxi-SenerTec UK, MicroPower Europe, Guascor Power, Cummins Power Generation Inc., Icogen SA and Pasch y Cia SA. Icogen SA, based in Barcelona, is the leading Spanish supplier for systems below 500 kW.

Engine manufacturers sell DG units that range in size from a few kWs to many MWs in size. Those manufacturers are predominantly greater than 1 MW and include Caterpillar Inc., Cummins Power Generation Inc., and Waukesha, a subsidiary of General Electric Company. In many cases, we view these companies as potential suppliers of equipment and not as competitors.

The alternative energy market is emerging rapidly. Many companies are developing alternative and renewable energy sources including solar power, wind power, fuel cells and micro-turbines. Some of the companies in this sector include General Electric Company, BP p.l.c, Royal Dutch Shell, SunEdison, a division of MEMC Electronic Materials, Inc. and Evergreen Solar, Inc. (in the solar energy space); Plug Power, Inc. and FuelCell Energy, Inc. (in the fuel cell space); and Capstone Turbine Corporation, Ingersoll Rand PLC and Elliott Turbomachinery, a division of the Elliott Group, Inc. (in the micro-turbine space). The effect of these developing technologies on our business is difficult to predict; however, when their technologies become more viable for our target markets, we may be able to adopt their technologies into our business model.

There are a number of energy service companies that offer related services.

These companies include Siemens AG, Honeywell International Inc. and Johnson Controls Inc. In general, these companies seek large, diverse projects for electric demand reduction for campuses that include building lighting and controls, and electricity (in rare occasions) or cooling. Because of their overhead structures, these companies often solicit large projects and stay away from individual properties. Since we will focus on smaller projects for energy supply, we will be well suited to work in tandem with these companies when the opportunity arises.

There are also a few local emerging cogeneration developers and contractors that are attempting to offer services similar to ours. To be successful, they will need to have the proper experience in equipment and technology, installation contracting, equipment maintenance and operation, site economic evaluation, project financing and energy sales plus the capability to cover a broad region.

Government Regulation We are not subject to extensive government regulation. We are required to file for local construction permits (electrical, mechanical and the like) and utility interconnects and we must make various filings in certain jurisdictions related to environmental emissions. Other than funding opportunities related to incentives and programs, there does not appear to be any new government regulations that may affect us.

Employees As of December 31, 2011, we had twelve employees, including four full time employees and one part time employee in the United Kingdom and seven part time employees in the United States. We believe that our relationship with our employees is satisfactory. None of our employees are represented by a collective bargaining agreement.

PART I Item 1. Business.

General EuroSite Power Inc., or the Company, we, our or us, has been organized to distribute, own and operate clean, on-site energy systems that produce electricity, hot water, heat and cooling in the United Kingdom and Europe. Our business model is to own the equipment that we install at customers' facilities and to sell the energy produced by these systems to the customers on a long-term contractual basis at prices guaranteed to the customer to be below conventional utility rates. We call this business the EuroSite Power "On-Site Utility". As of December 31, 2011, the Company did not have any installations in the United Kingdom or Europe.

The Company was incorporated as a Delaware corporation on July 9, 2010 and is currently an 82.8% subsidiary of American DG Energy Inc., or American DG Energy.

American DG Energy is an onsite energy company that sells energy in the form of electricity, heat, hot water and air conditioning under long-term contracts with commercial, institutional and light industrial customers in the United States.

EuroSite Power plans to introduce the American DG Energy business model to the United Kingdom and Europe.

On September 17, 2010, the Company registered as a wholly-owned subsidiary EuroSite Power Limited with the Registrar of Companies for England and Wales, to introduce the American DG Energy business model to the United Kingdom only. As the Company grows beyond the United Kingdom into other parts of Europe, it is expected that it will set up separate wholly-owned subsidiaries to do business in those countries. We currently estimate that our first revenues from equipment installations in the United Kingdom and the European market will be generated by the fourth quarter of 2012. The Company's website is at www.eurositepower.co.uk, but our website address included in this Annual Report is a textual reference only and the information in the website is not incorporated by reference into this Annual Report.

The Company has three affiliated companies, namely Tecogen Inc., or Tecogen, Ilios Inc., or Ilios, and GlenRose Instruments Inc., or GlenRose Instruments.

These companies are affiliates because several of the major shareholders of American DG Energy, the Company's corporate parent, have significant ownership positions in Tecogen, Ilios and GlenRose Instruments. Tecogen, Ilios and GlenRose Instruments do not own any shares of the Company, and the Company does not own any shares of Tecogen, Ilios or GlenRose Instruments. The common shareholders include John N. Hatsopoulos, who is the Chairman of the Company and GlenRose Instruments, the Chief Executive Officer and director of American DG Energy and Tecogen, and a director of Ilios. Also, Dr. George N. Hatsopoulos, who is John N. Hatsopoulos' brother, is the Chairman of American DG Energy, a director of Tecogen and an investor in GlenRose Instruments and Ilios.

Tecogen is a leading manufacturer of combined heat and power products, or CHP, including natural gas engine-driven cogeneration and air conditioning systems for industrial and commercial use. Ilios is a subsidiary of Tecogen that was formed in April 2009 to develop and distribute a line of ultra-high-efficiency heating products, such as a high efficiency water heater, that provide twice the efficiency of conventional boilers, based on management estimates, for commercial and industrial applications utilizing advanced thermodynamic principles. American DG Energy and EuroSite Power purchase energy equipment from various suppliers. The primary types of equipment used are natural gas engine-driven cogeneration and air conditioning systems provided by Tecogen and Ilios. Both Tecogen and American DG Energy will distribute the Ilios products.

The business of GlenRose Instruments is not related to the business of American DG Energy, the Company and their other corporate affiliates.

In July 2011, the Company hired a Managing Director in the United Kingdom to put together a sales and marketing team in order to generate revenues from equipment installations. As of the date of this Annual Report on Form 10-K, the Company did not have any operations, has not generated revenues or sold any energy systems.

When we commence operations, our On-Site Utility will supply electricity, heat, hot water and cooling at a discounted price to properties such as healthcare facilities, hotels, large, multi-family housing, leisure centers, schools and colleges. The Company's natural gas-powered cogeneration systems will produce electricity from an internal combustion engine that drives a generator, while the heat from the engine and exhaust is recovered and typically used to produce heat and hot water for use at the site. The Company will also distribute and operate water chiller systems for building cooling applications that operate in a similar manner, except that the engine's power drives a large air-conditioning compressor while recovering heat for hot water. Cogeneration systems reduce the amount of electricity that the customer must purchase from the local utility at a higher cost, and produce valuable heat and hot water for the site to use as required. By simultaneously providing electricity, hot water and heat, cogeneration systems also have a significant, positive impact on the environment by reducing the carbon or CO2 produced. Reliability is also enhanced because the customer remains connected to the electric grid and the failure of either source of electricity does not result in a power outage.

EUROSITE POWER INC.Distributed Generation of electricity, or DG, is often referred to as cogeneration, or combined heat and power systems, or CHP. DG is an attractive option for reducing energy costs and increasing the reliability of available energy. DG has been successfully implemented by others in large industrial installations over 10 Megawatts, or MW, where the market has been growing for several years, and is increasingly being accepted in the smaller size installations that we target because of technology improvements, increased energy costs and better DG economics. We believe that our target market (users of up to 1 MW) has barely been penetrated in the United Kingdom and Europe and that the reduced reliability of the utility grid, increasing cost pressures experienced by energy users, advances in new, low-cost technologies and DG-favorable legislation and regulation may drive the Company's near-term growth and penetration into its target market.

The following is a summary of the reasons why we believe that the United Kingdom and European markets are attractive: Our target countries (beginning with the United Kingdom, to be followed by Spain and Belgium) have large, urban markets with a high local density of target customers with large buildings in major cities (including hotels, healthcare facilities and large multi-family residential buildings).

Significant incentives, rebates and support are available for the installation and operation of CHP systems in Europe.

Government policy in Europe currently favors energy-efficient and environmentally friendly technologies and businesses.

Other companies deploying CHP systems have generated revenue from the environmental and carbon benefits of their systems.

Electricity prices are expected to increase significantly in Europe in the coming years.

The competition is focused on larger systems (both in footprint size and in kilowatts, or energy size). Our inverter-based InVerde 100-kW is small enough to fit into smaller buildings and has the proper energy production to match more buildings based on hot water needs. We expect to offer the only inverter-based CHP on the market.

Our potential customers are aware of and seeking energy- and environmentally- friendly solutions. However, capital budgets have shrunk or disappeared. The On-Site Utility approach requiring no customer capital might fit the market needs well.

Our sales model will target the top property owners with suitable operations for our On-Site Utility. Our direct sales team, advisory board and sales partners will be selected to target these customers.

Due to the slowdown in the economy, we will have many options to select technical partners to aid in installing and maintaining the energy systems.

These will range from existing competitors to mechanical contractors.

We expect, at the outset, to use our domestic systems (in the United States) to handle items such as system monitoring and customer billing.

There should be a special opportunity and advantage to sell cogeneration equipment running on natural gas in central London and in Europe because these areas already have electrical capacity connection constraints such that a natural gas chiller is likely to provide better economics to the customer and may reduce dependence on the electrical grid for other usages in the building.

With the additional introduction of the Ilios high efficiency water heater in the first half of 2012, and the introduction of the Low Emissions Technology in August of 2011, developed by Tecogen we expect to market a full array of highly innovative, efficient, and low emissions technologies to produce, electricity, hot water, heat and cooling.

CHP is already widely supported by governments in the European Union with many forms of government assistance provided to promote its use. In the European Union countries, CHP is widely viewed as a key measure to enable achievement of target reductions in greenhouse gas emissions. Legislation forcing companies to reduce their carbon footprint is having a large impact on CHP sales; there are also planning laws which force new building owners to provide at least 10% of their power supply from renewable sources (CHP is deemed renewable from a planning perspective). For example, the London Energy plan specifically supports and promotes CHP as a technology. We believe that our primary near-term opportunity for distributed generation energy and equipment sales is where commercial electricity rates exceed $0.12 per kW hour, or kWh. Attractive DG economics are currently attainable in applications that include hospitals, nursing homes, multi-tenant residential housing, hotels, schools and colleges, recreational facilities, food processing plants, dairies and other light industrial facilities.

When we commence operations we will purchase energy equipment from various suppliers. The primary type of equipment used will be a natural gas-powered, reciprocating engine provided by Tecogen, a leading manufacturer of natural gas engine-driven commercial and industrial cooling and cogeneration systems that are suitable for a variety of applications. A CHP system simultaneously produces two types of energy - heat and electricity - from a single fuel source, often natural gas. The two key components of a CHP system are an internal combustion reciprocating engine and an electric generator. The internal combustion reciprocating engine is provided to Tecogen by General Motors Company modified to run on natural gas and is a low-cost, mass-produced, internal combustion engine that is used primarily in light trucks and sport utility vehicles. The clean natural gas fired engine spins a generator to produce electricity. The natural byproduct of the working engine is heat. The heat is captured and used to supply space heating, heating domestic hot water, laundry hot water or to provide heat for swimming pools and spas.

EUROSITE POWER INC.The Company will also purchase energy equipment from Ilios. Based on management estimates, the equipment developed by Ilios, such as a high efficiency water heater, provides twice the efficiency of conventional boilers for commercial and industrial applications utilizing advanced thermodynamic principles. The Ilios products incorporate mechanical work to extract heat from the environment in order to supplement the chemical energy available in the fuel. The result is a significant boost in efficiency and reduction in carbon emissions.

As other power sources that use alternative energy technologies mature to the point that they are reliable and economical, we may consider employing them to supply energy for our customers. We regularly assess the technical, economic, and reliability issues associated with systems that use solar, micro-turbine or fuel cell technologies to generate power.

The Company and its Affiliates American DG Energy, GlenRose Instruments, Tecogen and Ilios, are affiliated companies by virtue of common ownership. Specifically, John N. Hatsopoulos who is the Chairman of the Company is: (a) the Chief Executive Officer and director of American DG Energy and holds 12.2% of the company's common stock, (b) the Chief Executive Officer and director of Tecogen and holds 27.6% of the company's common stock, (c) a director of Ilios and holds 7.3% of the company's common stock, and (d) the Chairman of GlenRose Instruments and holds 15.7% of the company's common stock. Dr. George N. Hatsopoulos, who is John N. Hatsopoulos' brother, is: (a) a director of American DG Energy and holds 14.7% of the company's common stock, (b) a director of Tecogen and holds 26.2% of the company's common stock, (c) an investor in Ilios and holds 2.9% of the company's common stock and (d) an investor of GlenRose Instruments and holds 15.7% of the company's common stock.

Background and Market The delivery of energy services to commercial and residential customers has evolved over many decades into an inefficient and increasingly unreliable structure. Power for lighting, air conditioning, refrigeration, communications and computing demands comes almost exclusively from centralized power plants serving users through a complex grid of transmission and distribution lines and substations. Even with continuous improvements in central station generation and transmission technologies, today's power industry according to the Energy Information Administration is only about 33% efficient, meaning that it discharges to the environment roughly twice as much heat as the amount of electrical energy delivered to end-users. Since coal accounts for a large part of electric power generation, these inefficiencies are a major contributor to rising atmospheric CO2 emissions. Countermeasures being sought to limit global warming are expected to favor the deployment of alternative energy technologies.

Most thermal energy for space heating and hot water services is produced by on-site boilers and furnaces that burn either natural gas or petroleum distillate fuels. This separation of thermal and electrical energy supply services has persisted despite a general recognition that CHP can be significantly more energy efficient than central generation of electricity only.

Except in large-scale industrial applications (e.g., paper and chemical manufacturing), cogeneration has not attained general acceptance. This has been due, in part, to the long-established monopoly-like structure of the regulated utility industry. Also, the technologies previously available for small on-site cogeneration systems were incapable of delivering the reliability, cost and environmental performance necessary to displace or even substantially modify the established power industry structure.

The Role of Distributed Generation Distributed Generation is the production of two sources or two types of energy (electricity or cooling and heat) from a single energy source (natural gas). We will use technology that utilizes a low-cost, mass-produced, internal combustion engine from General Motors, used primarily in light trucks and sport utility vehicles that is modified to run on natural gas. The engine spins either a standard generator to produce electricity, or a conventional compressor to produce cooling. For heating, since the working engine generates heat, we capture the byproduct heat with a heat exchanger and utilize the heat for facility applications in the form of space heating and hot water for buildings or industrial facilities. This process is very similar to an automobile, where the engine provides the motion to the automobile and the byproduct heat is used to keep the passengers warm during the winter months. For refrigeration or cooling, standard available equipment uses an electric motor to spin a conventional compressor to make cooling. We will replace the electric motor with the same modified engine that runs on natural gas to spin the compressor to run a refrigeration cycle and produce cooling.

EUROSITE POWER INC.Distributed generation refers to the application of small-scale energy production systems, including electricity generators, at locations in close proximity to the end-use loads that they serve. Integrated energy systems, operating at user sites but interconnected to existing electric distribution networks, can reduce demand on the nation's utility grid, increase energy efficiency, avoid the waste inherent in long distance wire and cable transmission of electricity, reduce air pollution and greenhouse gas emissions, and protect against power outages, while,in most cases, significantly lowering utility costs for power users and building operators.

Until recently, many DG technologies have not been a feasible alternative to traditional energy sources because of economic, technological and regulatory considerations. Even now, many "alternative energy" technologies (such as solar, wind, fuel cells and micro-turbines) have not been sufficiently developed or proven to economically meet the demands of commercial users or the ability to be connected to the existing utility grid.

When we commence operations we intend to supply cogeneration systems that are capable of meeting the demands of commercial users and that can be connected to the existing utility grid. Specific advantages of the Company's On-Site Utility approach of multiple energy services, compared with traditional centralized generation and distribution of electricity alone, include the following: Greatly increased overall energy efficiency (up to 90% versus less than 33% for the existing power grid), according to the Environmental and Energy Study Institute, or EESI1.

Rapid adaptation to changing demand requirements (e.g., weeks, not years to add new generating capacity where and when it is needed).

Ability to by-pass transmission line and substation bottlenecks in congested service areas.

Avoidance of site and right-of-way issues affecting large-scale power generation and distribution projects.

Clean operation, from using natural gas fired reciprocating engines using microprocessor combustion controls and low-cost exhaust catalyst technology developed for automobiles.

Rapid economic paybacks for equipment investments, often three to five years when compared to existing utility costs and technologies.

Relative insensitivity to fuel prices due to high overall efficiencies achieved with cogeneration of electricity and thermal energy services, including the use of waste heat to operate absorption type air conditioning systems (displacing electric-powered cooling capacity at times of peak summer demand).

Reduced vulnerability of multiple de-centralized small-scale generating units compared to the risk of major outages from natural disasters or terrorist attacks against large central-station power plants and long distance transmission lines.

Ability to remotely monitor, control and dispatch energy services on a real-time basis using advanced switchgear, software, microprocessor and internet modalities. Through our on-site energy products and services, energy users will be able to optimize, in real time, the mix of centralized and distributed electricity-generating resources.

Also, DG systems possess significant positive environmental impact. The United States Environmental Protection Agency, or EPA, has created a Combined Heat and Power Partnership to promote the benefits of DG systems. The Company is a member of this Partnership. The following statement is found on the EPA web site.

"Combined heat and power systems offer considerable environmental benefits when compared with purchased electricity and onsite-generated heat. By capturing and utilizing heat that would otherwise be wasted from the production of electricity, CHP systems require less fuel than equivalent separate heat and power systems to produce the same amount of energy. Because less fuel is combusted, greenhouse gas emissions, such as carbon dioxide (CO2), as well as criteria air pollutants like nitrogen oxides (NOx) and sulfur dioxide (SO2), are reduced.2" The disadvantages of the Company's On-Site Utility are: Cogeneration is a mechanical process and our equipment will be susceptible to downtime or failure.

1 See Environmental and Energy Study Institute (EESI), Energy Generation and Distribution Efficiency, http://www.eesi.org/generation_distribution. This website address and any other website addresses included in this Annual Report on Form 10-K are included as textual references only and the information in such websites is not incorporated by reference into this Annual Report on Form 10-K.

2 See: http://epa.gov/chp/basic/environmental.html. This website address and any other website addresses included in this Annual Report on Form 10-K are included as textual references only and the information in such websites is not incorporated by reference into this Annual Report on Form 10-K.

EUROSITE POWER INC.

The base-rate of an electric utility is determined by a certain number of subscribers. DG at a significant scale may reduce the number of subscribers and therefore it may increase the base-rate for the electric utility for its customer base.

By committing to our long-term agreements, a customer may be forfeiting the opportunity to use more efficient technology that may become available in the future.

The DG Market Opportunity We believe that our primary near-term opportunity for DG energy and equipment sales is where commercial electricity rates exceed $0.12 per kWh. Attractive DG economics in the United Kingdom and Europe are currently attainable in applications that include hospitals, nursing homes, multi-tenant residential housing, hotels, schools and colleges, recreational facilities, food processing plants, dairies and other light industrial facilities.

Early in 2010, American DG Energy performed a feasibility study of the European market to determine the viability of expanding its On-Site Utility business into Europe. This study and business plan report reached the conclusions that: (a) there is untapped customer demand to provide small-scale CHP packages in the commercial sector through a fully financed, output-based electricity and hot water contract, (b) there is a lack of competition in this space in the target customer segments (hotel, healthcare and multi-tenant residential) and (c) the underlying economic fundamentals are attainable, with a combination of sufficient spark spreads and government fiscal support.

The study analyzed the entire European market; however it focused on the United Kingdom, Spain and Belgium as the primary markets to start operations. The study estimated that there are over 13,700 sites in those three countries providing a $900 million annual electricity market plus a $600 million heat and hot water energy market, for a combined market potential of $1.5 billion. The data used to calculate the Company's market potential is derived by Company estimates.

However, our business model is untested in the United Kingdom and Europe, and we have not installed any equipment there and have no customer contracts there. It is extremely difficult to predict whether we will achieve any success in developing our business. There can be no assurance that we will generate revenues or that revenues will generate profits or be sufficient to maintain our business. American DG Energy, our parent, has experienced total net losses since inception of approximately $17.9 million. For the foreseeable future, we expect to experience continuing operating losses and negative cash flows from operations as our management attempts to execute our current business plan." Business Model Our parent, American DG Energy is an onsite energy company that sells energy in the form of electricity, heat, hot water and air conditioning under long-term contracts with commercial, institutional and light industrial customers. We intend to implement our parent's business strategy in the United Kingdom and Europe by installing our systems at no cost to our customers and retaining ownership of the system. Because our systems may operate at up to 90% efficiency, according to the EESI (versus less than 33% for the existing power grid), we expect to be able to sell the energy produced by these systems to our customers at prices below their existing cost of electricity (or air conditioning), heat and hot water. Our cogeneration systems will consist of natural gas-powered internal combustion engines that drive an electrical generator to produce electricity and that capture the engine heat to produce space heating and hot water. Our energy systems may also be configured to drive a compressor that produces air conditioning and that also captures the engine heat.

To date, American DG Energy's installations all run in conjunction with the electric utility grid and require standard interconnection approval from the local utility. Our customers use both our energy system and the electric utility grid for their electricity requirements. We will typically supply the first 20% to 60% of the building's electricity requirements while the remaining electricity is supplied by the electric utility grid. Our customers will be contractually bound to use the energy we supply.

To date, the price that American DG Energy has charged its customers is set forth in customer contracts at a discount to the price of the building's local electric utility. For the 20% to 60% portion of the customer's electricity that is supplied, the customer realizes immediate savings on its electric bill. In addition to electricity, it sells the heat and hot water at the same price the customer was previously paying or at a discount equivalent to the customer's discount on electricity. Air conditioning systems are also priced at a discount so that the customer realizes overall cost savings from the installation.

Since we intend to own and operate the energy systems and since customers have no investment in the units, we expect that our customers will benefit from no capital requirements and no operating responsibilities. We will operate the energy systems so our customers require no staff and have no energy system responsibilities; they are bound, however, to pay for the energy supplied by the energy systems over the term of the agreement.

EUROSITE POWER INC.Energy and Products Portfolio We will provide the same full range of CHP product and energy options that are provided by American DG Energy, including: Energy Sales Energy Producing Products Turnkey Installation Energy Producing Products with Incentives Other Revenue Opportunities Energy Sales For customers seeking an alternative to the outright purchase of CHP equipment, we will install, maintain, finance, own and operate complete on-site CHP systems that supply, on a long-term, contractual basis, electricity and other energy services. Our business model is to sell the energy to customers at a guaranteed discount rate to the rates charged by conventional utility suppliers. Customers will be billed monthly and benefit from a reduction in their current energy bills without the capital costs and risks associated with owning and operating a cogeneration or chiller system. Also, by outsourcing the management and financing of on-site energy facilities to us, they will reap the economic advantages of DG without the need for retaining specialized in-house staff with skills unrelated to their core business. Customers will benefit from our On-Site Utility in a number of ways: Guaranteed lower price for energy Only pay for the energy they use No capital costs for equipment, engineering and installation No equipment operating costs for fuel and maintenance Immediate cash flow improvement Significant green impact by the reduction of carbon produced No staffing, operations and equipment responsibility Our customers will pay us for energy produced on site at a rate that is a certain percentage below the rate at which the utility companies provide them electrical and natural gas services. We will measure the actual amount of electrical and thermal energy produced, and charge our customers accordingly. We intend to install, operate, maintain and repair our energy systems at our sole cost and expense. We also intend to obtain any necessary permits or regulatory approvals at our sole expense. Our agreements will generally be for a term of 15 years, renewable for two additional five years terms upon the mutual agreement of the parties.

In regions where high electricity rates prevail, monthly payments for CHP energy services can yield attractive paybacks (e.g. often 3-5 years) on our investments in On-Site Utility projects. We expect the price of natural gas to have a minor effect on the financial returns obtained from our energy service contracts because the value of hot water and other thermal services produced from the recovered heat generated by the internal combustion engine in our On-Site Utility system will increase in proportion to higher fuel costs. This recovered energy, which comprises up to 60% of the total heating value of fuel supplied to the CHP equipment, displaces fuel that would otherwise be burned in conventional boilers.

Energy Producing Products We intend to offer cogeneration units sized to produce 100 kW of electricity, water chillers sized to produce 200 to 400 tons of cooling and high efficiency water heaters. For cogeneration, we prefer a modular design approach to allow us to group multiple units together to serve customers with considerably larger power requirements. Often, cogeneration units are conveniently dispersed within a large operation, such as a hospital or campus, serving multiple process heating systems that would otherwise be impractical to serve from a single large machine. The equipment we select often yield overall energy efficiencies in excess of 80% (from our equipment supplier's specifications).

EUROSITE POWER INC.We will also purchase energy equipment that incorporates mechanical work to extract heat from the environment in order to supplement the chemical energy available in the fuel. The result of that equipment is a significant boost in efficiency and carbon emissions benefit relative to conventional heating systems.

Many other DG technologies are challenged by technical, economic and reliability issues associated with systems that generate power using solar, micro-turbine or fuel cell technologies, which have not yet proven to be economical for typical customer needs. As other power sources that use alternative energy technologies mature to the point that they are reliable and economical, we may consider employing them to supply energy for our customers.

Service and Installation Where appropriate, we intend to utilize the best local service infrastructure for the equipment we deploy. We will require long-term maintenance contracts and ongoing parts sales. Our centralized remote monitoring capability will allow us to keep track of our equipment in the field. Our installations will be performed by local contractors with experience in energy cogeneration systems.

For the occasional customers that want to own the CHP system themselves, we will offer our "turn-key" option whereby we will sell equipment and provide systems engineering, installation, interconnect approvals, on-site labor and startup services needed to bring the complete CHP system on-line. For some customers, we will also require a fee to operate the systems and may receive a portion of the savings generated from the equipment.

Other Funding and Revenue Opportunities The Company may be able to participate in the demand response market and receive payments due to the availability of its energy systems when operations commence.

Demand response programs provide payments for either the reduction of electricity usage or the increase in electricity production during periods of peak usage throughout a utility territory. Since our systems are highly efficient, when we commence operations, we may be able to participate in various carbon reduction markets. We are currently not involved in any such activity as described above.

Sales and Marketing We intend to offer cogeneration units sized to produce 100 kW of electricity and water chillers sized to produce 200 to 400 tons of cooling. Our On-Site Utility services will be sold directly to end-users by our in-house marketing team and by established sales agents and representatives. In July 2011, we hired a Managing Director in the United Kingdom to put together a sales and marketing team in order to generate revenues from equipment installations. We will also hire service and support staff, but do not expect to expend significant funds in filling those positions. As of the date of this Annual Report on Form 10-K, the Company did not have any operations, has not generated revenues or sold any energy systems.

Our On-Site Utility services will be sold directly to end-users by our in-house marketing team and by established sales agents and representatives. We will offer standardized packages of energy, equipment and services suited to the needs of property owners and operators in healthcare, hospitality, large residential, athletic facilities and certain industrial sites. This includes national accounts and other customer groups having a common set of energy requirements at multiple locations.

Our energy offering is translated into direct financial gain for our clients, and is best appreciated by senior management. These clients recognize the gain in cash flow, the increase in net income and the preservation of capital we offer. As such, our energy sales will be focused on reaching these decision makers.

We also intend to expand our sales efforts by developing joint marketing initiatives with key industry suppliers. Particularly important will be collaborative programs with natural gas utility companies. Since the economic viability of any CHP project is critically dependent upon effective utilization of recovered heat, the insight of the gas supplier to the customer energy profile is particularly effective in prospecting the most cost-effective DG sites in any region.

DG is currently enjoying growing support among utility regulators seeking to increase the reliability of electricity supply with cost effective environmentally responsible demand-side resources. Many European countries encourage DG through inter-connecting standards, incentives and/or supply planning. Unlike large central station power plants, DG investments can be made in small increments and with lead-times as short as just a few months.

European governments are developing and refining various funding opportunities related to economic incentives and programs for DG operators. Our CHP systems may fit very well with these programs. Other than funding opportunities related to incentives and programs, there does not appear to be any new government regulations that will affect us.

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Competition We believe that the main competition for DG products is the established electric utility infrastructure. DG is beginning to gain acceptance in regions where energy customers are dissatisfied with the cost and reliability of traditional electricity service. These end-users, together with growing support from regulators, are creating a favorable climate for the growth of DG that is overcoming the objections of established utility providers. Those companies are much larger than us in terms of revenues, assets and resources. We expect to compete with large utility companies by selling its electricity to the same commercial building customers at a lower price. We will sell directly to each building customer, but typically only supply 20%-60% of the electricity needs of the building. The remaining portion will be supplied by the electric utility.

In the United Kingdom, we will primarily compete with Cogenco Limited, a subsidiary of Dalkia PLC, an alternative energy company with customers in the 50-500 kW range, ENER-G Holdings plc and Jenbacher, a subsidiary of General Electric Company. Other companies in the same market are Clarke Energy Ltd, EC Power Systems and Baxi-SenerTec UK. In Belgium, most CHP equipment manufacturers are non-Belgian companies, including CogenGreen S.A., Capstone Turbine Corporation and Cummins Power Generation Inc., which will be our primary competitors in the 50-500 kW range. In Spain, we will compete with Baxi-SenerTec UK, MicroPower Europe, Guascor Power, Cummins Power Generation Inc., Icogen SA and Pasch y Cia SA. Icogen SA, based in Barcelona, is the leading Spanish supplier for systems below 500 kW.

Engine manufacturers sell DG units that range in size from a few kWs to many MWs in size. Those manufacturers are predominantly greater than 1 MW and include Caterpillar Inc., Cummins Power Generation Inc., and Waukesha, a subsidiary of General Electric Company. In many cases, we view these companies as potential suppliers of equipment and not as competitors.

The alternative energy market is emerging rapidly. Many companies are developing alternative and renewable energy sources including solar power, wind power, fuel cells and micro-turbines. Some of the companies in this sector include General Electric Company, BP p.l.c, Royal Dutch Shell, SunEdison, a division of MEMC Electronic Materials, Inc. and Evergreen Solar, Inc. (in the solar energy space); Plug Power, Inc. and FuelCell Energy, Inc. (in the fuel cell space); and Capstone Turbine Corporation, Ingersoll Rand PLC and Elliott Turbomachinery, a division of the Elliott Group, Inc. (in the micro-turbine space). The effect of these developing technologies on our business is difficult to predict; however, when their technologies become more viable for our target markets, we may be able to adopt their technologies into our business model.

There are a number of energy service companies that offer related services.

These companies include Siemens AG, Honeywell International Inc. and Johnson Controls Inc. In general, these companies seek large, diverse projects for electric demand reduction for campuses that include building lighting and controls, and electricity (in rare occasions) or cooling. Because of their overhead structures, these companies often solicit large projects and stay away from individual properties. Since we will focus on smaller projects for energy supply, we will be well suited to work in tandem with these companies when the opportunity arises.

There are also a few local emerging cogeneration developers and contractors that are attempting to offer services similar to ours. To be successful, they will need to have the proper experience in equipment and technology, installation contracting, equipment maintenance and operation, site economic evaluation, project financing and energy sales plus the capability to cover a broad region.

Government Regulation We are not subject to extensive government regulation. We are required to file for local construction permits (electrical, mechanical and the like) and utility interconnects and we must make various filings in certain jurisdictions related to environmental emissions. Other than funding opportunities related to incentives and programs, there does not appear to be any new government regulations that may affect us.

Employees As of December 31, 2011, we had twelve employees, including four full time employees and one part time employee in the United Kingdom and seven part time employees in the United States. We believe that our relationship with our employees is satisfactory. None of our employees are represented by a collective bargaining agreement.

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a discussion of important factors that could cause actual results to differ materially from the results described in or implied by the forward-looking statements contained in the following discussion and analysis.

Overview The Company distributes, owns and operates clean, on-site energy systems that produce electricity, hot water, heat and cooling in the United Kingdom and Europe. The Company derives sales from selling energy in the form of electricity, heat, hot water and cooling to its customers under long-term energy sales agreements (with a typical term of 10 to 15 years). The energy systems are owned by the Company and are installed in our customers' buildings. Each month we obtain readings from our energy meters to determine the amount of energy produced for each customer. We multiply these readings by the appropriate published price of energy (electricity, natural gas or oil) from our customers' local energy utility, to derive the value of our monthly energy sale, less the applicable negotiated discount. Our revenues per customer on a monthly basis may vary based on the amount of energy produced by our energy systems and the published price of energy (electricity, natural gas or oil) from our customers' local energy utility that month. Our revenues commence as new energy systems become operational.

The Company has experienced total net losses since inception of $3.2 million.

The Company owns the energy-producing equipment at the customer's site; therefore, the business is capital intensive. The Company believes that its existing resources, including cash and cash equivalents, future cash flow from operations, its ability to control certain costs, including those related to general and administrative expenses, and the use of capital from its parent company, will be sufficient to meet the working capital requirements of its existing business for the foreseeable future, including the next 12 months; however, as the Company continues to grow its business by adding more energy systems, the cash requirements will increase. Beyond March 31, 2014, if the Company cannot raise capital by the existing equity fundraising effort, it may need to raise additional capital through a debt financing or use capital provided by its parent to meet its operating and capital needs. There can be no assurance, however, that the Company will be successful in these fund-raising efforts or that additional funds will be available on acceptable terms, if at all.

In 2012, the Company raised a total of $2,139,293, net of issuance costs, through a private placement and a public offering of Common Stock. If the Company is unable to raise additional capital, the Company may need to terminate certain of its employees and adjust its current business plan. Financial considerations may cause the Company to modify planned deployment of new energy systems and the Company may decide to suspend installations until it is able to secure additional working capital. The Company will evaluate possible acquisitions of, or investments in, businesses, technologies and products that are complementary to its business; however, the Company is not currently engaged in such discussions.

The Company's operations are comprised of one business segment. Our business is selling energy in the form of electricity, heat, hot water and cooling to our customers under long-term sales agreements.

Recent Accounting Pronouncements For recent accounting pronouncements see "Note 1 - Description of business and summary of significant accounting policies" to our consolidated financial statements.

Critical Accounting Policies For critical accounting policies see "Note 1 - Description of business and summary of significant accounting policies" to our consolidated financial statements.

Results of Operations Fiscal Year Ended December 31, 2012 Compared with Fiscal Year Ended December 31, 2011 Revenues Revenues in 2012 were $81,110 compared to $0 for the same period in 2011. The revenues during the year included energy revenues and revenues from the performance of billable services related to construction and engineering for a site.

In 2012 the Company has announced that it has reached agreements to supply clean energy to Haverhill Leisure Centre in Suffolk, to five landmark hotels owned by The Ability Group and managed by Hilton Worldwide, to three Cedar Court Hotel Huddersfield in Yorkshire, to the Wentworth Club and to four Roko Health Clubs.

18-------------------------------------------------------------------------------- Table of Contents EUROSITE POWER INC.

Item 1. Business.

General EuroSite Power Inc., or the Company, we, our or us, has been organized to distribute, own and operate clean, on-site energy systems that produce electricity, hot water, heat and cooling in the United Kingdom and Europe. Our business model is to own the equipment that we install at customers' facilities and to sell the energy produced by these systems to the customers on a long-term contractual basis at prices guaranteed to the customer to be below conventional utility rates. We call this business the EuroSite Power "On-Site Utility". As of December 31, 2011, the Company did not have any installations in the United Kingdom or Europe.

The Company was incorporated as a Delaware corporation on July 9, 2010 and is currently an 82.8% subsidiary of American DG Energy Inc., or American DG Energy.

American DG Energy is an onsite energy company that sells energy in the form of electricity, heat, hot water and air conditioning under long-term contracts with commercial, institutional and light industrial customers in the United States.

EuroSite Power plans to introduce the American DG Energy business model to the United Kingdom and Europe.

On September 17, 2010, the Company registered as a wholly-owned subsidiary EuroSite Power Limited with the Registrar of Companies for England and Wales, to introduce the American DG Energy business model to the United Kingdom only. As the Company grows beyond the United Kingdom into other parts of Europe, it is expected that it will set up separate wholly-owned subsidiaries to do business in those countries. We currently estimate that our first revenues from equipment installations in the United Kingdom and the European market will be generated by the fourth quarter of 2012. The Company's website is at www.eurositepower.co.uk, but our website address included in this Annual Report is a textual reference only and the information in the website is not incorporated by reference into this Annual Report.

The Company has three affiliated companies, namely Tecogen Inc., or Tecogen, Ilios Inc., or Ilios, and GlenRose Instruments Inc., or GlenRose Instruments.

These companies are affiliates because several of the major shareholders of American DG Energy, the Company's corporate parent, have significant ownership positions in Tecogen, Ilios and GlenRose Instruments. Tecogen, Ilios and GlenRose Instruments do not own any shares of the Company, and the Company does not own any shares of Tecogen, Ilios or GlenRose Instruments. The common shareholders include John N. Hatsopoulos, who is the Chairman of the Company and GlenRose Instruments, the Chief Executive Officer and director of American DG Energy and Tecogen, and a director of Ilios. Also, Dr. George N. Hatsopoulos, who is John N. Hatsopoulos' brother, is the Chairman of American DG Energy, a director of Tecogen and an investor in GlenRose Instruments and Ilios.

Tecogen is a leading manufacturer of combined heat and power products, or CHP, including natural gas engine-driven cogeneration and air conditioning systems for industrial and commercial use. Ilios is a subsidiary of Tecogen that was formed in April 2009 to develop and distribute a line of ultra-high-efficiency heating products, such as a high efficiency water heater, that provide twice the efficiency of conventional boilers, based on management estimates, for commercial and industrial applications utilizing advanced thermodynamic principles. American DG Energy and EuroSite Power purchase energy equipment from various suppliers. The primary types of equipment used are natural gas engine-driven cogeneration and air conditioning systems provided by Tecogen and Ilios. Both Tecogen and American DG Energy will distribute the Ilios products.

The business of GlenRose Instruments is not related to the business of American DG Energy, the Company and their other corporate affiliates.

In July 2011, the Company hired a Managing Director in the United Kingdom to put together a sales and marketing team in order to generate revenues from equipment installations. As of the date of this Annual Report on Form 10-K, the Company did not have any operations, has not generated revenues or sold any energy systems.

When we commence operations, our On-Site Utility will supply electricity, heat, hot water and cooling at a discounted price to properties such as healthcare facilities, hotels, large, multi-family housing, leisure centers, schools and colleges. The Company's natural gas-powered cogeneration systems will produce electricity from an internal combustion engine that drives a generator, while the heat from the engine and exhaust is recovered and typically used to produce heat and hot water for use at the site. The Company will also distribute and operate water chiller systems for building cooling applications that operate in a similar manner, except that the engine's power drives a large air-conditioning compressor while recovering heat for hot water. Cogeneration systems reduce the amount of electricity that the customer must purchase from the local utility at a higher cost, and produce valuable heat and hot water for the site to use as required. By simultaneously providing electricity, hot water and heat, cogeneration systems also have a significant, positive impact on the environment by reducing the carbon or CO2 produced. Reliability is also enhanced because the customer remains connected to the electric grid and the failure of either source of electricity does not result in a power outage.

EUROSITE POWER INC.Distributed Generation of electricity, or DG, is often referred to as cogeneration, or combined heat and power systems, or CHP. DG is an attractive option for reducing energy costs and increasing the reliability of available energy. DG has been successfully implemented by others in large industrial installations over 10 Megawatts, or MW, where the market has been growing for several years, and is increasingly being accepted in the smaller size installations that we target because of technology improvements, increased energy costs and better DG economics. We believe that our target market (users of up to 1 MW) has barely been penetrated in the United Kingdom and Europe and that the reduced reliability of the utility grid, increasing cost pressures experienced by energy users, advances in new, low-cost technologies and DG-favorable legislation and regulation may drive the Company's near-term growth and penetration into its target market.

The following is a summary of the reasons why we believe that the United Kingdom and European markets are attractive: Our target countries (beginning with the United Kingdom, to be followed by Spain and Belgium) have large, urban markets with a high local density of target customers with large buildings in major cities (including hotels, healthcare facilities and large multi-family residential buildings).

Significant incentives, rebates and support are available for the installation and operation of CHP systems in Europe.

Government policy in Europe currently favors energy-efficient and environmentally friendly technologies and businesses.

Other companies deploying CHP systems have generated revenue from the environmental and carbon benefits of their systems.

Electricity prices are expected to increase significantly in Europe in the coming years.

The competition is focused on larger systems (both in footprint size and in kilowatts, or energy size). Our inverter-based InVerde 100-kW is small enough to fit into smaller buildings and has the proper energy production to match more buildings based on hot water needs. We expect to offer the only inverter-based CHP on the market.

Our potential customers are aware of and seeking energy- and environmentally- friendly solutions. However, capital budgets have shrunk or disappeared. The On-Site Utility approach requiring no customer capital might fit the market needs well.

Our sales model will target the top property owners with suitable operations for our On-Site Utility. Our direct sales team, advisory board and sales partners will be selected to target these customers.

Due to the slowdown in the economy, we will have many options to select technical partners to aid in installing and maintaining the energy systems.

These will range from existing competitors to mechanical contractors.

We expect, at the outset, to use our domestic systems (in the United States) to handle items such as system monitoring and customer billing.

There should be a special opportunity and advantage to sell cogeneration equipment running on natural gas in central London and in Europe because these areas already have electrical capacity connection constraints such that a natural gas chiller is likely to provide better economics to the customer and may reduce dependence on the electrical grid for other usages in the building.

With the additional introduction of the Ilios high efficiency water heater in the first half of 2012, and the introduction of the Low Emissions Technology in August of 2011, developed by Tecogen we expect to market a full array of highly innovative, efficient, and low emissions technologies to produce, electricity, hot water, heat and cooling.

CHP is already widely supported by governments in the European Union with many forms of government assistance provided to promote its use. In the European Union countries, CHP is widely viewed as a key measure to enable achievement of target reductions in greenhouse gas emissions. Legislation forcing companies to reduce their carbon footprint is having a large impact on CHP sales; there are also planning laws which force new building owners to provide at least 10% of their power supply from renewable sources (CHP is deemed renewable from a planning perspective). For example, the London Energy plan specifically supports and promotes CHP as a technology. We believe that our primary near-term opportunity for distributed generation energy and equipment sales is where commercial electricity rates exceed $0.12 per kW hour, or kWh. Attractive DG economics are currently attainable in applications that include hospitals, nursing homes, multi-tenant residential housing, hotels, schools and colleges, recreational facilities, food processing plants, dairies and other light industrial facilities.

When we commence operations we will purchase energy equipment from various suppliers. The primary type of equipment used will be a natural gas-powered, reciprocating engine provided by Tecogen, a leading manufacturer of natural gas engine-driven commercial and industrial cooling and cogeneration systems that are suitable for a variety of applications. A CHP system simultaneously produces two types of energy - heat and electricity - from a single fuel source, often natural gas. The two key components of a CHP system are an internal combustion reciprocating engine and an electric generator. The internal combustion reciprocating engine is provided to Tecogen by General Motors Company modified to run on natural gas and is a low-cost, mass-produced, internal combustion engine that is used primarily in light trucks and sport utility vehicles. The clean natural gas fired engine spins a generator to produce electricity. The natural byproduct of the working engine is heat. The heat is captured and used to supply space heating, heating domestic hot water, laundry hot water or to provide heat for swimming pools and spas.

EUROSITE POWER INC.The Company will also purchase energy equipment from Ilios. Based on management estimates, the equipment developed by Ilios, such as a high efficiency water heater, provides twice the efficiency of conventional boilers for commercial and industrial applications utilizing advanced thermodynamic principles. The Ilios products incorporate mechanical work to extract heat from the environment in order to supplement the chemical energy available in the fuel. The result is a significant boost in efficiency and reduction in carbon emissions.

As other power sources that use alternative energy technologies mature to the point that they are reliable and economical, we may consider employing them to supply energy for our customers. We regularly assess the technical, economic, and reliability issues associated with systems that use solar, micro-turbine or fuel cell technologies to generate power.

The Company and its Affiliates American DG Energy, GlenRose Instruments, Tecogen and Ilios, are affiliated companies by virtue of common ownership. Specifically, John N. Hatsopoulos who is the Chairman of the Company is: (a) the Chief Executive Officer and director of American DG Energy and holds 12.2% of the company's common stock, (b) the Chief Executive Officer and director of Tecogen and holds 27.6% of the company's common stock, (c) a director of Ilios and holds 7.3% of the company's common stock, and (d) the Chairman of GlenRose Instruments and holds 15.7% of the company's common stock. Dr. George N. Hatsopoulos, who is John N. Hatsopoulos' brother, is: (a) a director of American DG Energy and holds 14.7% of the company's common stock, (b) a director of Tecogen and holds 26.2% of the company's common stock, (c) an investor in Ilios and holds 2.9% of the company's common stock and (d) an investor of GlenRose Instruments and holds 15.7% of the company's common stock.

Background and Market The delivery of energy services to commercial and residential customers has evolved over many decades into an inefficient and increasingly unreliable structure. Power for lighting, air conditioning, refrigeration, communications and computing demands comes almost exclusively from centralized power plants serving users through a complex grid of transmission and distribution lines and substations. Even with continuous improvements in central station generation and transmission technologies, today's power industry according to the Energy Information Administration is only about 33% efficient, meaning that it discharges to the environment roughly twice as much heat as the amount of electrical energy delivered to end-users. Since coal accounts for a large part of electric power generation, these inefficiencies are a major contributor to rising atmospheric CO2 emissions. Countermeasures being sought to limit global warming are expected to favor the deployment of alternative energy technologies.

Most thermal energy for space heating and hot water services is produced by on-site boilers and furnaces that burn either natural gas or petroleum distillate fuels. This separation of thermal and electrical energy supply services has persisted despite a general recognition that CHP can be significantly more energy efficient than central generation of electricity only.

Except in large-scale industrial applications (e.g., paper and chemical manufacturing), cogeneration has not attained general acceptance. This has been due, in part, to the long-established monopoly-like structure of the regulated utility industry. Also, the technologies previously available for small on-site cogeneration systems were incapable of delivering the reliability, cost and environmental performance necessary to displace or even substantially modify the established power industry structure.

The Role of Distributed Generation Distributed Generation is the production of two sources or two types of energy (electricity or cooling and heat) from a single energy source (natural gas). We will use technology that utilizes a low-cost, mass-produced, internal combustion engine from General Motors, used primarily in light trucks and sport utility vehicles that is modified to run on natural gas. The engine spins either a standard generator to produce electricity, or a conventional compressor to produce cooling. For heating, since the working engine generates heat, we capture the byproduct heat with a heat exchanger and utilize the heat for facility applications in the form of space heating and hot water for buildings or industrial facilities. This process is very similar to an automobile, where the engine provides the motion to the automobile and the byproduct heat is used to keep the passengers warm during the winter months. For refrigeration or cooling, standard available equipment uses an electric motor to spin a conventional compressor to make cooling. We will replace the electric motor with the same modified engine that runs on natural gas to spin the compressor to run a refrigeration cycle and produce cooling.

EUROSITE POWER INC.Distributed generation refers to the application of small-scale energy production systems, including electricity generators, at locations in close proximity to the end-use loads that they serve. Integrated energy systems, operating at user sites but interconnected to existing electric distribution networks, can reduce demand on the nation's utility grid, increase energy efficiency, avoid the waste inherent in long distance wire and cable transmission of electricity, reduce air pollution and greenhouse gas emissions, and protect against power outages, while,in most cases, significantly lowering utility costs for power users and building operators.

Until recently, many DG technologies have not been a feasible alternative to traditional energy sources because of economic, technological and regulatory considerations. Even now, many "alternative energy" technologies (such as solar, wind, fuel cells and micro-turbines) have not been sufficiently developed or proven to economically meet the demands of commercial users or the ability to be connected to the existing utility grid.

When we commence operations we intend to supply cogeneration systems that are capable of meeting the demands of commercial users and that can be connected to the existing utility grid. Specific advantages of the Company's On-Site Utility approach of multiple energy services, compared with traditional centralized generation and distribution of electricity alone, include the following: Greatly increased overall energy efficiency (up to 90% versus less than 33% for the existing power grid), according to the Environmental and Energy Study Institute, or EESI1.

Rapid adaptation to changing demand requirements (e.g., weeks, not years to add new generating capacity where and when it is needed).

Ability to by-pass transmission line and substation bottlenecks in congested service areas.

Avoidance of site and right-of-way issues affecting large-scale power generation and distribution projects.

Clean operation, from using natural gas fired reciprocating engines using microprocessor combustion controls and low-cost exhaust catalyst technology developed for automobiles.

Rapid economic paybacks for equipment investments, often three to five years when compared to existing utility costs and technologies.

Relative insensitivity to fuel prices due to high overall efficiencies achieved with cogeneration of electricity and thermal energy services, including the use of waste heat to operate absorption type air conditioning systems (displacing electric-powered cooling capacity at times of peak summer demand).

Reduced vulnerability of multiple de-centralized small-scale generating units compared to the risk of major outages from natural disasters or terrorist attacks against large central-station power plants and long distance transmission lines.

Ability to remotely monitor, control and dispatch energy services on a real-time basis using advanced switchgear, software, microprocessor and internet modalities. Through our on-site energy products and services, energy users will be able to optimize, in real time, the mix of centralized and distributed electricity-generating resources.

Also, DG systems possess significant positive environmental impact. The United States Environmental Protection Agency, or EPA, has created a Combined Heat and Power Partnership to promote the benefits of DG systems. The Company is a member of this Partnership. The following statement is found on the EPA web site.

"Combined heat and power systems offer considerable environmental benefits when compared with purchased electricity and onsite-generated heat. By capturing and utilizing heat that would otherwise be wasted from the production of electricity, CHP systems require less fuel than equivalent separate heat and power systems to produce the same amount of energy. Because less fuel is combusted, greenhouse gas emissions, such as carbon dioxide (CO2), as well as criteria air pollutants like nitrogen oxides (NOx) and sulfur dioxide (SO2), are reduced.2" The disadvantages of the Company's On-Site Utility are: Cogeneration is a mechanical process and our equipment will be susceptible to downtime or failure.

1 See Environmental and Energy Study Institute (EESI), Energy Generation and Distribution Efficiency, http://www.eesi.org/generation_distribution. This website address and any other website addresses included in this Annual Report on Form 10-K are included as textual references only and the information in such websites is not incorporated by reference into this Annual Report on Form 10-K.

2 See: http://epa.gov/chp/basic/environmental.html. This website address and any other website addresses included in this Annual Report on Form 10-K are included as textual references only and the information in such websites is not incorporated by reference into this Annual Report on Form 10-K.

EUROSITE POWER INC.

The base-rate of an electric utility is determined by a certain number of subscribers. DG at a significant scale may reduce the number of subscribers and therefore it may increase the base-rate for the electric utility for its customer base.

By committing to our long-term agreements, a customer may be forfeiting the opportunity to use more efficient technology that may become available in the future.

The DG Market Opportunity We believe that our primary near-term opportunity for DG energy and equipment sales is where commercial electricity rates exceed $0.12 per kWh. Attractive DG economics in the United Kingdom and Europe are currently attainable in applications that include hospitals, nursing homes, multi-tenant residential housing, hotels, schools and colleges, recreational facilities, food processing plants, dairies and other light industrial facilities.

Early in 2010, American DG Energy performed a feasibility study of the European market to determine the viability of expanding its On-Site Utility business into Europe. This study and business plan report reached the conclusions that: (a) there is untapped customer demand to provide small-scale CHP packages in the commercial sector through a fully financed, output-based electricity and hot water contract, (b) there is a lack of competition in this space in the target customer segments (hotel, healthcare and multi-tenant residential) and (c) the underlying economic fundamentals are attainable, with a combination of sufficient spark spreads and government fiscal support.

The study analyzed the entire European market; however it focused on the United Kingdom, Spain and Belgium as the primary markets to start operations. The study estimated that there are over 13,700 sites in those three countries providing a $900 million annual electricity market plus a $600 million heat and hot water energy market, for a combined market potential of $1.5 billion. The data used to calculate the Company's market potential is derived by Company estimates.

However, our business model is untested in the United Kingdom and Europe, and we have not installed any equipment there and have no customer contracts there. It is extremely difficult to predict whether we will achieve any success in developing our business. There can be no assurance that we will generate revenues or that revenues will generate profits or be sufficient to maintain our business. American DG Energy, our parent, has experienced total net losses since inception of approximately $17.9 million. For the foreseeable future, we expect to experience continuing operating losses and negative cash flows from operations as our management attempts to execute our current business plan." Business Model Our parent, American DG Energy is an onsite energy company that sells energy in the form of electricity, heat, hot water and air conditioning under long-term contracts with commercial, institutional and light industrial customers. We intend to implement our parent's business strategy in the United Kingdom and Europe by installing our systems at no cost to our customers and retaining ownership of the system. Because our systems may operate at up to 90% efficiency, according to the EESI (versus less than 33% for the existing power grid), we expect to be able to sell the energy produced by these systems to our customers at prices below their existing cost of electricity (or air conditioning), heat and hot water. Our cogeneration systems will consist of natural gas-powered internal combustion engines that drive an electrical generator to produce electricity and that capture the engine heat to produce space heating and hot water. Our energy systems may also be configured to drive a compressor that produces air conditioning and that also captures the engine heat.

To date, American DG Energy's installations all run in conjunction with the electric utility grid and require standard interconnection approval from the local utility. Our customers use both our energy system and the electric utility grid for their electricity requirements. We will typically supply the first 20% to 60% of the building's electricity requirements while the remaining electricity is supplied by the electric utility grid. Our customers will be contractually bound to use the energy we supply.

To date, the price that American DG Energy has charged its customers is set forth in customer contracts at a discount to the price of the building's local electric utility. For the 20% to 60% portion of the customer's electricity that is supplied, the customer realizes immediate savings on its electric bill. In addition to electricity, it sells the heat and hot water at the same price the customer was previously paying or at a discount equivalent to the customer's discount on electricity. Air conditioning systems are also priced at a discount so that the customer realizes overall cost savings from the installation.

Since we intend to own and operate the energy systems and since customers have no investment in the units, we expect that our customers will benefit from no capital requirements and no operating responsibilities. We will operate the energy systems so our customers require no staff and have no energy system responsibilities; they are bound, however, to pay for the energy supplied by the energy systems over the term of the agreement.

EUROSITE POWER INC.Energy and Products Portfolio We will provide the same full range of CHP product and energy options that are provided by American DG Energy, including: Energy Sales Energy Producing Products Turnkey Installation Energy Producing Products with Incentives Other Revenue Opportunities Energy Sales For customers seeking an alternative to the outright purchase of CHP equipment, we will install, maintain, finance, own and operate complete on-site CHP systems that supply, on a long-term, contractual basis, electricity and other energy services. Our business model is to sell the energy to customers at a guaranteed discount rate to the rates charged by conventional utility suppliers. Customers will be billed monthly and benefit from a reduction in their current energy bills without the capital costs and risks associated with owning and operating a cogeneration or chiller system. Also, by outsourcing the management and financing of on-site energy facilities to us, they will reap the economic advantages of DG without the need for retaining specialized in-house staff with skills unrelated to their core business. Customers will benefit from our On-Site Utility in a number of ways: Guaranteed lower price for energy Only pay for the energy they use No capital costs for equipment, engineering and installation No equipment operating costs for fuel and maintenance Immediate cash flow improvement Significant green impact by the reduction of carbon produced No staffing, operations and equipment responsibility Our customers will pay us for energy produced on site at a rate that is a certain percentage below the rate at which the utility companies provide them electrical and natural gas services. We will measure the actual amount of electrical and thermal energy produced, and charge our customers accordingly. We intend to install, operate, maintain and repair our energy systems at our sole cost and expense. We also intend to obtain any necessary permits or regulatory approvals at our sole expense. Our agreements will generally be for a term of 15 years, renewable for two additional five years terms upon the mutual agreement of the parties.

In regions where high electricity rates prevail, monthly payments for CHP energy services can yield attractive paybacks (e.g. often 3-5 years) on our investments in On-Site Utility projects. We expect the price of natural gas to have a minor effect on the financial returns obtained from our energy service contracts because the value of hot water and other thermal services produced from the recovered heat generated by the internal combustion engine in our On-Site Utility system will increase in proportion to higher fuel costs. This recovered energy, which comprises up to 60% of the total heating value of fuel supplied to the CHP equipment, displaces fuel that would otherwise be burned in conventional boilers.

Energy Producing Products We intend to offer cogeneration units sized to produce 100 kW of electricity, water chillers sized to produce 200 to 400 tons of cooling and high efficiency water heaters. For cogeneration, we prefer a modular design approach to allow us to group multiple units together to serve customers with considerably larger power requirements. Often, cogeneration units are conveniently dispersed within a large operation, such as a hospital or campus, serving multiple process heating systems that would otherwise be impractical to serve from a single large machine. The equipment we select often yield overall energy efficiencies in excess of 80% (from our equipment supplier's specifications).

EUROSITE POWER INC.We will also purchase energy equipment that incorporates mechanical work to extract heat from the environment in order to supplement the chemical energy available in the fuel. The result of that equipment is a significant boost in efficiency and carbon emissions benefit relative to conventional heating systems.

Many other DG technologies are challenged by technical, economic and reliability issues associated with systems that generate power using solar, micro-turbine or fuel cell technologies, which have not yet proven to be economical for typical customer needs. As other power sources that use alternative energy technologies mature to the point that they are reliable and economical, we may consider employing them to supply energy for our customers.

Service and Installation Where appropriate, we intend to utilize the best local service infrastructure for the equipment we deploy. We will require long-term maintenance contracts and ongoing parts sales. Our centralized remote monitoring capability will allow us to keep track of our equipment in the field. Our installations will be performed by local contractors with experience in energy cogeneration systems.

For the occasional customers that want to own the CHP system themselves, we will offer our "turn-key" option whereby we will sell equipment and provide systems engineering, installation, interconnect approvals, on-site labor and startup services needed to bring the complete CHP system on-line. For some customers, we will also require a fee to operate the systems and may receive a portion of the savings generated from the equipment.

Other Funding and Revenue Opportunities The Company may be able to participate in the demand response market and receive payments due to the availability of its energy systems when operations commence.

Demand response programs provide payments for either the reduction of electricity usage or the increase in electricity production during periods of peak usage throughout a utility territory. Since our systems are highly efficient, when we commence operations, we may be able to participate in various carbon reduction markets. We are currently not involved in any such activity as described above.

Sales and Marketing We intend to offer cogeneration units sized to produce 100 kW of electricity and water chillers sized to produce 200 to 400 tons of cooling. Our On-Site Utility services will be sold directly to end-users by our in-house marketing team and by established sales agents and representatives. In July 2011, we hired a Managing Director in the United Kingdom to put together a sales and marketing team in order to generate revenues from equipment installations. We will also hire service and support staff, but do not expect to expend significant funds in filling those positions. As of the date of this Annual Report on Form 10-K, the Company did not have any operations, has not generated revenues or sold any energy systems.

Our On-Site Utility services will be sold directly to end-users by our in-house marketing team and by established sales agents and representatives. We will offer standardized packages of energy, equipment and services suited to the needs of property owners and operators in healthcare, hospitality, large residential, athletic facilities and certain industrial sites. This includes national accounts and other customer groups having a common set of energy requirements at multiple locations.

Our energy offering is translated into direct financial gain for our clients, and is best appreciated by senior management. These clients recognize the gain in cash flow, the increase in net income and the preservation of capital we offer. As such, our energy sales will be focused on reaching these decision makers.

We also intend to expand our sales efforts by developing joint marketing initiatives with key industry suppliers. Particularly important will be collaborative programs with natural gas utility companies. Since the economic viability of any CHP project is critically dependent upon effective utilization of recovered heat, the insight of the gas supplier to the customer energy profile is particularly effective in prospecting the most cost-effective DG sites in any region.

DG is currently enjoying growing support among utility regulators seeking to increase the reliability of electricity supply with cost effective environmentally responsible demand-side resources. Many European countries encourage DG through inter-connecting standards, incentives and/or supply planning. Unlike large central station power plants, DG investments can be made in small increments and with lead-times as short as just a few months.

European governments are developing and refining various funding opportunities related to economic incentives and programs for DG operators. Our CHP systems may fit very well with these programs. Other than funding opportunities related to incentives and programs, there does not appear to be any new government regulations that will affect us.

EUROSITE POWER INC.

Competition We believe that the main competition for DG products is the established electric utility infrastructure. DG is beginning to gain acceptance in regions where energy customers are dissatisfied with the cost and reliability of traditional electricity service. These end-users, together with growing support from regulators, are creating a favorable climate for the growth of DG that is overcoming the objections of established utility providers. Those companies are much larger than us in terms of revenues, assets and resources. We expect to compete with large utility companies by selling its electricity to the same commercial building customers at a lower price. We will sell directly to each building customer, but typically only supply 20%-60% of the electricity needs of the building. The remaining portion will be supplied by the electric utility.

In the United Kingdom, we will primarily compete with Cogenco Limited, a subsidiary of Dalkia PLC, an alternative energy company with customers in the 50-500 kW range, ENER-G Holdings plc and Jenbacher, a subsidiary of General Electric Company. Other companies in the same market are Clarke Energy Ltd, EC Power Systems and Baxi-SenerTec UK. In Belgium, most CHP equipment manufacturers are non-Belgian companies, including CogenGreen S.A., Capstone Turbine Corporation and Cummins Power Generation Inc., which will be our primary competitors in the 50-500 kW range. In Spain, we will compete with Baxi-SenerTec UK, MicroPower Europe, Guascor Power, Cummins Power Generation Inc., Icogen SA and Pasch y Cia SA. Icogen SA, based in Barcelona, is the leading Spanish supplier for systems below 500 kW.

Engine manufacturers sell DG units that range in size from a few kWs to many MWs in size. Those manufacturers are predominantly greater than 1 MW and include Caterpillar Inc., Cummins Power Generation Inc., and Waukesha, a subsidiary of General Electric Company. In many cases, we view these companies as potential suppliers of equipment and not as competitors.

The alternative energy market is emerging rapidly. Many companies are developing alternative and renewable energy sources including solar power, wind power, fuel cells and micro-turbines. Some of the companies in this sector include General Electric Company, BP p.l.c, Royal Dutch Shell, SunEdison, a division of MEMC Electronic Materials, Inc. and Evergreen Solar, Inc. (in the solar energy space); Plug Power, Inc. and FuelCell Energy, Inc. (in the fuel cell space); and Capstone Turbine Corporation, Ingersoll Rand PLC and Elliott Turbomachinery, a division of the Elliott Group, Inc. (in the micro-turbine space). The effect of these developing technologies on our business is difficult to predict; however, when their technologies become more viable for our target markets, we may be able to adopt their technologies into our business model.

There are a number of energy service companies that offer related services.

These companies include Siemens AG, Honeywell International Inc. and Johnson Controls Inc. In general, these companies seek large, diverse projects for electric demand reduction for campuses that include building lighting and controls, and electricity (in rare occasions) or cooling. Because of their overhead structures, these companies often solicit large projects and stay away from individual properties. Since we will focus on smaller projects for energy supply, we will be well suited to work in tandem with these companies when the opportunity arises.

There are also a few local emerging cogeneration developers and contractors that are attempting to offer services similar to ours. To be successful, they will need to have the proper experience in equipment and technology, installation contracting, equipment maintenance and operation, site economic evaluation, project financing and energy sales plus the capability to cover a broad region.

Government Regulation We are not subject to extensive government regulation. We are required to file for local construction permits (electrical, mechanical and the like) and utility interconnects and we must make various filings in certain jurisdictions related to environmental emissions. Other than funding opportunities related to incentives and programs, there does not appear to be any new government regulations that may affect us.

Employees As of December 31, 2011, we had twelve employees, including four full time employees and one part time employee in the United Kingdom and seven part time employees in the United States. We believe that our relationship with our employees is satisfactory. None of our employees are represented by a collective bargaining agreement.

PART I Item 1. Business.

General EuroSite Power Inc., or the Company, we, our or us, has been organized to distribute, own and operate clean, on-site energy systems that produce electricity, hot water, heat and cooling in the United Kingdom and Europe. Our business model is to own the equipment that we install at customers' facilities and to sell the energy produced by these systems to the customers on a long-term contractual basis at prices guaranteed to the customer to be below conventional utility rates. We call this business the EuroSite Power "On-Site Utility". As of December 31, 2011, the Company did not have any installations in the United Kingdom or Europe.

The Company was incorporated as a Delaware corporation on July 9, 2010 and is currently an 82.8% subsidiary of American DG Energy Inc., or American DG Energy.

American DG Energy is an onsite energy company that sells energy in the form of electricity, heat, hot water and air conditioning under long-term contracts with commercial, institutional and light industrial customers in the United States.

EuroSite Power plans to introduce the American DG Energy business model to the United Kingdom and Europe.

On September 17, 2010, the Company registered as a wholly-owned subsidiary EuroSite Power Limited with the Registrar of Companies for England and Wales, to introduce the American DG Energy business model to the United Kingdom only. As the Company grows beyond the United Kingdom into other parts of Europe, it is expected that it will set up separate wholly-owned subsidiaries to do business in those countries. We currently estimate that our first revenues from equipment installations in the United Kingdom and the European market will be generated by the fourth quarter of 2012. The Company's website is at www.eurositepower.co.uk, but our website address included in this Annual Report is a textual reference only and the information in the website is not incorporated by reference into this Annual Report.

The Company has three affiliated companies, namely Tecogen Inc., or Tecogen, Ilios Inc., or Ilios, and GlenRose Instruments Inc., or GlenRose Instruments.

These companies are affiliates because several of the major shareholders of American DG Energy, the Company's corporate parent, have significant ownership positions in Tecogen, Ilios and GlenRose Instruments. Tecogen, Ilios and GlenRose Instruments do not own any shares of the Company, and the Company does not own any shares of Tecogen, Ilios or GlenRose Instruments. The common shareholders include John N. Hatsopoulos, who is the Chairman of the Company and GlenRose Instruments, the Chief Executive Officer and director of American DG Energy and Tecogen, and a director of Ilios. Also, Dr. George N. Hatsopoulos, who is John N. Hatsopoulos' brother, is the Chairman of American DG Energy, a director of Tecogen and an investor in GlenRose Instruments and Ilios.

Tecogen is a leading manufacturer of combined heat and power products, or CHP, including natural gas engine-driven cogeneration and air conditioning systems for industrial and commercial use. Ilios is a subsidiary of Tecogen that was formed in April 2009 to develop and distribute a line of ultra-high-efficiency heating products, such as a high efficiency water heater, that provide twice the efficiency of conventional boilers, based on management estimates, for commercial and industrial applications utilizing advanced thermodynamic principles. American DG Energy and EuroSite Power purchase energy equipment from various suppliers. The primary types of equipment used are natural gas engine-driven cogeneration and air conditioning systems provided by Tecogen and Ilios. Both Tecogen and American DG Energy will distribute the Ilios products.

The business of GlenRose Instruments is not related to the business of American DG Energy, the Company and their other corporate affiliates.

In July 2011, the Company hired a Managing Director in the United Kingdom to put together a sales and marketing team in order to generate revenues from equipment installations. As of the date of this Annual Report on Form 10-K, the Company did not have any operations, has not generated revenues or sold any energy systems.

When we commence operations, our On-Site Utility will supply electricity, heat, hot water and cooling at a discounted price to properties such as healthcare facilities, hotels, large, multi-family housing, leisure centers, schools and colleges. The Company's natural gas-powered cogeneration systems will produce electricity from an internal combustion engine that drives a generator, while the heat from the engine and exhaust is recovered and typically used to produce heat and hot water for use at the site. The Company will also distribute and operate water chiller systems for building cooling applications that operate in a similar manner, except that the engine's power drives a large air-conditioning compressor while recovering heat for hot water. Cogeneration systems reduce the amount of electricity that the customer must purchase from the local utility at a higher cost, and produce valuable heat and hot water for the site to use as required. By simultaneously providing electricity, hot water and heat, cogeneration systems also have a significant, positive impact on the environment by reducing the carbon or CO2 produced. Reliability is also enhanced because the customer remains connected to the electric grid and the failure of either source of electricity does not result in a power outage.

EUROSITE POWER INC.Distributed Generation of electricity, or DG, is often referred to as cogeneration, or combined heat and power systems, or CHP. DG is an attractive option for reducing energy costs and increasing the reliability of available energy. DG has been successfully implemented by others in large industrial installations over 10 Megawatts, or MW, where the market has been growing for several years, and is increasingly being accepted in the smaller size installations that we target because of technology improvements, increased energy costs and better DG economics. We believe that our target market (users of up to 1 MW) has barely been penetrated in the United Kingdom and Europe and that the reduced reliability of the utility grid, increasing cost pressures experienced by energy users, advances in new, low-cost technologies and DG-favorable legislation and regulation may drive the Company's near-term growth and penetration into its target market.

The following is a summary of the reasons why we believe that the United Kingdom and European markets are attractive: Our target countries (beginning with the United Kingdom, to be followed by Spain and Belgium) have large, urban markets with a high local density of target customers with large buildings in major cities (including hotels, healthcare facilities and large multi-family residential buildings).

Significant incentives, rebates and support are available for the installation and operation of CHP systems in Europe.

Government policy in Europe currently favors energy-efficient and environmentally friendly technologies and businesses.

Other companies deploying CHP systems have generated revenue from the environmental and carbon benefits of their systems.

Electricity prices are expected to increase significantly in Europe in the coming years.

The competition is focused on larger systems (both in footprint size and in kilowatts, or energy size). Our inverter-based InVerde 100-kW is small enough to fit into smaller buildings and has the proper energy production to match more buildings based on hot water needs. We expect to offer the only inverter-based CHP on the market.

Our potential customers are aware of and seeking energy- and environmentally- friendly solutions. However, capital budgets have shrunk or disappeared. The On-Site Utility approach requiring no customer capital might fit the market needs well.

Our sales model will target the top property owners with suitable operations for our On-Site Utility. Our direct sales team, advisory board and sales partners will be selected to target these customers.

Due to the slowdown in the economy, we will have many options to select technical partners to aid in installing and maintaining the energy systems.

These will range from existing competitors to mechanical contractors.

We expect, at the outset, to use our domestic systems (in the United States) to handle items such as system monitoring and customer billing.

There should be a special opportunity and advantage to sell cogeneration equipment running on natural gas in central London and in Europe because these areas already have electrical capacity connection constraints such that a natural gas chiller is likely to provide better economics to the customer and may reduce dependence on the electrical grid for other usages in the building.

With the additional introduction of the Ilios high efficiency water heater in the first half of 2012, and the introduction of the Low Emissions Technology in August of 2011, developed by Tecogen we expect to market a full array of highly innovative, efficient, and low emissions technologies to produce, electricity, hot water, heat and cooling.

CHP is already widely supported by governments in the European Union with many forms of government assistance provided to promote its use. In the European Union countries, CHP is widely viewed as a key measure to enable achievement of target reductions in greenhouse gas emissions. Legislation forcing companies to reduce their carbon footprint is having a large impact on CHP sales; there are also planning laws which force new building owners to provide at least 10% of their power supply from renewable sources (CHP is deemed renewable from a planning perspective). For example, the London Energy plan specifically supports and promotes CHP as a technology. We believe that our primary near-term opportunity for distributed generation energy and equipment sales is where commercial electricity rates exceed $0.12 per kW hour, or kWh. Attractive DG economics are currently attainable in applications that include hospitals, nursing homes, multi-tenant residential housing, hotels, schools and colleges, recreational facilities, food processing plants, dairies and other light industrial facilities.

When we commence operations we will purchase energy equipment from various suppliers. The primary type of equipment used will be a natural gas-powered, reciprocating engine provided by Tecogen, a leading manufacturer of natural gas engine-driven commercial and industrial cooling and cogeneration systems that are suitable for a variety of applications. A CHP system simultaneously produces two types of energy - heat and electricity - from a single fuel source, often natural gas. The two key components of a CHP system are an internal combustion reciprocating engine and an electric generator. The internal combustion reciprocating engine is provided to Tecogen by General Motors Company modified to run on natural gas and is a low-cost, mass-produced, internal combustion engine that is used primarily in light trucks and sport utility vehicles. The clean natural gas fired engine spins a generator to produce electricity. The natural byproduct of the working engine is heat. The heat is captured and used to supply space heating, heating domestic hot water, laundry hot water or to provide heat for swimming pools and spas.

EUROSITE POWER INC.The Company will also purchase energy equipment from Ilios. Based on management estimates, the equipment developed by Ilios, such as a high efficiency water heater, provides twice the efficiency of conventional boilers for commercial and industrial applications utilizing advanced thermodynamic principles. The Ilios products incorporate mechanical work to extract heat from the environment in order to supplement the chemical energy available in the fuel. The result is a significant boost in efficiency and reduction in carbon emissions.

As other power sources that use alternative energy technologies mature to the point that they are reliable and economical, we may consider employing them to supply energy for our customers. We regularly assess the technical, economic, and reliability issues associated with systems that use solar, micro-turbine or fuel cell technologies to generate power.

The Company and its Affiliates American DG Energy, GlenRose Instruments, Tecogen and Ilios, are affiliated companies by virtue of common ownership. Specifically, John N. Hatsopoulos who is the Chairman of the Company is: (a) the Chief Executive Officer and director of American DG Energy and holds 12.2% of the company's common stock, (b) the Chief Executive Officer and director of Tecogen and holds 27.6% of the company's common stock, (c) a director of Ilios and holds 7.3% of the company's common stock, and (d) the Chairman of GlenRose Instruments and holds 15.7% of the company's common stock. Dr. George N. Hatsopoulos, who is John N. Hatsopoulos' brother, is: (a) a director of American DG Energy and holds 14.7% of the company's common stock, (b) a director of Tecogen and holds 26.2% of the company's common stock, (c) an investor in Ilios and holds 2.9% of the company's common stock and (d) an investor of GlenRose Instruments and holds 15.7% of the company's common stock.

Background and Market The delivery of energy services to commercial and residential customers has evolved over many decades into an inefficient and increasingly unreliable structure. Power for lighting, air conditioning, refrigeration, communications and computing demands comes almost exclusively from centralized power plants serving users through a complex grid of transmission and distribution lines and substations. Even with continuous improvements in central station generation and transmission technologies, today's power industry according to the Energy Information Administration is only about 33% efficient, meaning that it discharges to the environment roughly twice as much heat as the amount of electrical energy delivered to end-users. Since coal accounts for a large part of electric power generation, these inefficiencies are a major contributor to rising atmospheric CO2 emissions. Countermeasures being sought to limit global warming are expected to favor the deployment of alternative energy technologies.

Most thermal energy for space heating and hot water services is produced by on-site boilers and furnaces that burn either natural gas or petroleum distillate fuels. This separation of thermal and electrical energy supply services has persisted despite a general recognition that CHP can be significantly more energy efficient than central generation of electricity only.

Except in large-scale industrial applications (e.g., paper and chemical manufacturing), cogeneration has not attained general acceptance. This has been due, in part, to the long-established monopoly-like structure of the regulated utility industry. Also, the technologies previously available for small on-site cogeneration systems were incapable of delivering the reliability, cost and environmental performance necessary to displace or even substantially modify the established power industry structure.

The Role of Distributed Generation Distributed Generation is the production of two sources or two types of energy (electricity or cooling and heat) from a single energy source (natural gas). We will use technology that utilizes a low-cost, mass-produced, internal combustion engine from General Motors, used primarily in light trucks and sport utility vehicles that is modified to run on natural gas. The engine spins either a standard generator to produce electricity, or a conventional compressor to produce cooling. For heating, since the working engine generates heat, we capture the byproduct heat with a heat exchanger and utilize the heat for facility applications in the form of space heating and hot water for buildings or industrial facilities. This process is very similar to an automobile, where the engine provides the motion to the automobile and the byproduct heat is used to keep the passengers warm during the winter months. For refrigeration or cooling, standard available equipment uses an electric motor to spin a conventional compressor to make cooling. We will replace the electric motor with the same modified engine that runs on natural gas to spin the compressor to run a refrigeration cycle and produce cooling.

EUROSITE POWER INC.Distributed generation refers to the application of small-scale energy production systems, including electricity generators, at locations in close proximity to the end-use loads that they serve. Integrated energy systems, operating at user sites but interconnected to existing electric distribution networks, can reduce demand on the nation's utility grid, increase energy efficiency, avoid the waste inherent in long distance wire and cable transmission of electricity, reduce air pollution and greenhouse gas emissions, and protect against power outages, while,in most cases, significantly lowering utility costs for power users and building operators.

Until recently, many DG technologies have not been a feasible alternative to traditional energy sources because of economic, technological and regulatory considerations. Even now, many "alternative energy" technologies (such as solar, wind, fuel cells and micro-turbines) have not been sufficiently developed or proven to economically meet the demands of commercial users or the ability to be connected to the existing utility grid.

When we commence operations we intend to supply cogeneration systems that are capable of meeting the demands of commercial users and that can be connected to the existing utility grid. Specific advantages of the Company's On-Site Utility approach of multiple energy services, compared with traditional centralized generation and distribution of electricity alone, include the following: Greatly increased overall energy efficiency (up to 90% versus less than 33% for the existing power grid), according to the Environmental and Energy Study Institute, or EESI1.

Rapid adaptation to changing demand requirements (e.g., weeks, not years to add new generating capacity where and when it is needed).

Ability to by-pass transmission line and substation bottlenecks in congested service areas.

Avoidance of site and right-of-way issues affecting large-scale power generation and distribution projects.

Clean operation, from using natural gas fired reciprocating engines using microprocessor combustion controls and low-cost exhaust catalyst technology developed for automobiles.

Rapid economic paybacks for equipment investments, often three to five years when compared to existing utility costs and technologies.

Relative insensitivity to fuel prices due to high overall efficiencies achieved with cogeneration of electricity and thermal energy services, including the use of waste heat to operate absorption type air conditioning systems (displacing electric-powered cooling capacity at times of peak summer demand).

Reduced vulnerability of multiple de-centralized small-scale generating units compared to the risk of major outages from natural disasters or terrorist attacks against large central-station power plants and long distance transmission lines.

Ability to remotely monitor, control and dispatch energy services on a real-time basis using advanced switchgear, software, microprocessor and internet modalities. Through our on-site energy products and services, energy users will be able to optimize, in real time, the mix of centralized and distributed electricity-generating resources.

Also, DG systems possess significant positive environmental impact. The United States Environmental Protection Agency, or EPA, has created a Combined Heat and Power Partnership to promote the benefits of DG systems. The Company is a member of this Partnership. The following statement is found on the EPA web site.

"Combined heat and power systems offer considerable environmental benefits when compared with purchased electricity and onsite-generated heat. By capturing and utilizing heat that would otherwise be wasted from the production of electricity, CHP systems require less fuel than equivalent separate heat and power systems to produce the same amount of energy. Because less fuel is combusted, greenhouse gas emissions, such as carbon dioxide (CO2), as well as criteria air pollutants like nitrogen oxides (NOx) and sulfur dioxide (SO2), are reduced.2" The disadvantages of the Company's On-Site Utility are: Cogeneration is a mechanical process and our equipment will be susceptible to downtime or failure.

1 See Environmental and Energy Study Institute (EESI), Energy Generation and Distribution Efficiency, http://www.eesi.org/generation_distribution. This website address and any other website addresses included in this Annual Report on Form 10-K are included as textual references only and the information in such websites is not incorporated by reference into this Annual Report on Form 10-K.

2 See: http://epa.gov/chp/basic/environmental.html. This website address and any other website addresses included in this Annual Report on Form 10-K are included as textual references only and the information in such websites is not incorporated by reference into this Annual Report on Form 10-K.

EUROSITE POWER INC.

The base-rate of an electric utility is determined by a certain number of subscribers. DG at a significant scale may reduce the number of subscribers and therefore it may increase the base-rate for the electric utility for its customer base.

By committing to our long-term agreements, a customer may be forfeiting the opportunity to use more efficient technology that may become available in the future.

The DG Market Opportunity We believe that our primary near-term opportunity for DG energy and equipment sales is where commercial electricity rates exceed $0.12 per kWh. Attractive DG economics in the United Kingdom and Europe are currently attainable in applications that include hospitals, nursing homes, multi-tenant residential housing, hotels, schools and colleges, recreational facilities, food processing plants, dairies and other light industrial facilities.

Early in 2010, American DG Energy performed a feasibility study of the European market to determine the viability of expanding its On-Site Utility business into Europe. This study and business plan report reached the conclusions that: (a) there is untapped customer demand to provide small-scale CHP packages in the commercial sector through a fully financed, output-based electricity and hot water contract, (b) there is a lack of competition in this space in the target customer segments (hotel, healthcare and multi-tenant residential) and (c) the underlying economic fundamentals are attainable, with a combination of sufficient spark spreads and government fiscal support.

The study analyzed the entire European market; however it focused on the United Kingdom, Spain and Belgium as the primary markets to start operations. The study estimated that there are over 13,700 sites in those three countries providing a $900 million annual electricity market plus a $600 million heat and hot water energy market, for a combined market potential of $1.5 billion. The data used to calculate the Company's market potential is derived by Company estimates.

However, our business model is untested in the United Kingdom and Europe, and we have not installed any equipment there and have no customer contracts there. It is extremely difficult to predict whether we will achieve any success in developing our business. There can be no assurance that we will generate revenues or that revenues will generate profits or be sufficient to maintain our business. American DG Energy, our parent, has experienced total net losses since inception of approximately $17.9 million. For the foreseeable future, we expect to experience continuing operating losses and negative cash flows from operations as our management attempts to execute our current business plan." Business Model Our parent, American DG Energy is an onsite energy company that sells energy in the form of electricity, heat, hot water and air conditioning under long-term contracts with commercial, institutional and light industrial customers. We intend to implement our parent's business strategy in the United Kingdom and Europe by installing our systems at no cost to our customers and retaining ownership of the system. Because our systems may operate at up to 90% efficiency, according to the EESI (versus less than 33% for the existing power grid), we expect to be able to sell the energy produced by these systems to our customers at prices below their existing cost of electricity (or air conditioning), heat and hot water. Our cogeneration systems will consist of natural gas-powered internal combustion engines that drive an electrical generator to produce electricity and that capture the engine heat to produce space heating and hot water. Our energy systems may also be configured to drive a compressor that produces air conditioning and that also captures the engine heat.

To date, American DG Energy's installations all run in conjunction with the electric utility grid and require standard interconnection approval from the local utility. Our customers use both our energy system and the electric utility grid for their electricity requirements. We will typically supply the first 20% to 60% of the building's electricity requirements while the remaining electricity is supplied by the electric utility grid. Our customers will be contractually bound to use the energy we supply.

To date, the price that American DG Energy has charged its customers is set forth in customer contracts at a discount to the price of the building's local electric utility. For the 20% to 60% portion of the customer's electricity that is supplied, the customer realizes immediate savings on its electric bill. In addition to electricity, it sells the heat and hot water at the same price the customer was previously paying or at a discount equivalent to the customer's discount on electricity. Air conditioning systems are also priced at a discount so that the customer realizes overall cost savings from the installation.

Since we intend to own and operate the energy systems and since customers have no investment in the units, we expect that our customers will benefit from no capital requirements and no operating responsibilities. We will operate the energy systems so our customers require no staff and have no energy system responsibilities; they are bound, however, to pay for the energy supplied by the energy systems over the term of the agreement.

EUROSITE POWER INC.Energy and Products Portfolio We will provide the same full range of CHP product and energy options that are provided by American DG Energy, including: Energy Sales Energy Producing Products Turnkey Installation Energy Producing Products with Incentives Other Revenue Opportunities Energy Sales For customers seeking an alternative to the outright purchase of CHP equipment, we will install, maintain, finance, own and operate complete on-site CHP systems that supply, on a long-term, contractual basis, electricity and other energy services. Our business model is to sell the energy to customers at a guaranteed discount rate to the rates charged by conventional utility suppliers. Customers will be billed monthly and benefit from a reduction in their current energy bills without the capital costs and risks associated with owning and operating a cogeneration or chiller system. Also, by outsourcing the management and financing of on-site energy facilities to us, they will reap the economic advantages of DG without the need for retaining specialized in-house staff with skills unrelated to their core business. Customers will benefit from our On-Site Utility in a number of ways: Guaranteed lower price for energy Only pay for the energy they use No capital costs for equipment, engineering and installation No equipment operating costs for fuel and maintenance Immediate cash flow improvement Significant green impact by the reduction of carbon produced No staffing, operations and equipment responsibility Our customers will pay us for energy produced on site at a rate that is a certain percentage below the rate at which the utility companies provide them electrical and natural gas services. We will measure the actual amount of electrical and thermal energy produced, and charge our customers accordingly. We intend to install, operate, maintain and repair our energy systems at our sole cost and expense. We also intend to obtain any necessary permits or regulatory approvals at our sole expense. Our agreements will generally be for a term of 15 years, renewable for two additional five years terms upon the mutual agreement of the parties.

In regions where high electricity rates prevail, monthly payments for CHP energy services can yield attractive paybacks (e.g. often 3-5 years) on our investments in On-Site Utility projects. We expect the price of natural gas to have a minor effect on the financial returns obtained from our energy service contracts because the value of hot water and other thermal services produced from the recovered heat generated by the internal combustion engine in our On-Site Utility system will increase in proportion to higher fuel costs. This recovered energy, which comprises up to 60% of the total heating value of fuel supplied to the CHP equipment, displaces fuel that would otherwise be burned in conventional boilers.

Energy Producing Products We intend to offer cogeneration units sized to produce 100 kW of electricity, water chillers sized to produce 200 to 400 tons of cooling and high efficiency water heaters. For cogeneration, we prefer a modular design approach to allow us to group multiple units together to serve customers with considerably larger power requirements. Often, cogeneration units are conveniently dispersed within a large operation, such as a hospital or campus, serving multiple process heating systems that would otherwise be impractical to serve from a single large machine. The equipment we select often yield overall energy efficiencies in excess of 80% (from our equipment supplier's specifications).

EUROSITE POWER INC.We will also purchase energy equipment that incorporates mechanical work to extract heat from the environment in order to supplement the chemical energy available in the fuel. The result of that equipment is a significant boost in efficiency and carbon emissions benefit relative to conventional heating systems.

Many other DG technologies are challenged by technical, economic and reliability issues associated with systems that generate power using solar, micro-turbine or fuel cell technologies, which have not yet proven to be economical for typical customer needs. As other power sources that use alternative energy technologies mature to the point that they are reliable and economical, we may consider employing them to supply energy for our customers.

Service and Installation Where appropriate, we intend to utilize the best local service infrastructure for the equipment we deploy. We will require long-term maintenance contracts and ongoing parts sales. Our centralized remote monitoring capability will allow us to keep track of our equipment in the field. Our installations will be performed by local contractors with experience in energy cogeneration systems.

For the occasional customers that want to own the CHP system themselves, we will offer our "turn-key" option whereby we will sell equipment and provide systems engineering, installation, interconnect approvals, on-site labor and startup services needed to bring the complete CHP system on-line. For some customers, we will also require a fee to operate the systems and may receive a portion of the savings generated from the equipment.

Other Funding and Revenue Opportunities The Company may be able to participate in the demand response market and receive payments due to the availability of its energy systems when operations commence.

Demand response programs provide payments for either the reduction of electricity usage or the increase in electricity production during periods of peak usage throughout a utility territory. Since our systems are highly efficient, when we commence operations, we may be able to participate in various carbon reduction markets. We are currently not involved in any such activity as described above.

Sales and Marketing We intend to offer cogeneration units sized to produce 100 kW of electricity and water chillers sized to produce 200 to 400 tons of cooling. Our On-Site Utility services will be sold directly to end-users by our in-house marketing team and by established sales agents and representatives. In July 2011, we hired a Managing Director in the United Kingdom to put together a sales and marketing team in order to generate revenues from equipment installations. We will also hire service and support staff, but do not expect to expend significant funds in filling those positions. As of the date of this Annual Report on Form 10-K, the Company did not have any operations, has not generated revenues or sold any energy systems.

Our On-Site Utility services will be sold directly to end-users by our in-house marketing team and by established sales agents and representatives. We will offer standardized packages of energy, equipment and services suited to the needs of property owners and operators in healthcare, hospitality, large residential, athletic facilities and certain industrial sites. This includes national accounts and other customer groups having a common set of energy requirements at multiple locations.

Our energy offering is translated into direct financial gain for our clients, and is best appreciated by senior management. These clients recognize the gain in cash flow, the increase in net income and the preservation of capital we offer. As such, our energy sales will be focused on reaching these decision makers.

We also intend to expand our sales efforts by developing joint marketing initiatives with key industry suppliers. Particularly important will be collaborative programs with natural gas utility companies. Since the economic viability of any CHP project is critically dependent upon effective utilization of recovered heat, the insight of the gas supplier to the customer energy profile is particularly effective in prospecting the most cost-effective DG sites in any region.

DG is currently enjoying growing support among utility regulators seeking to increase the reliability of electricity supply with cost effective environmentally responsible demand-side resources. Many European countries encourage DG through inter-connecting standards, incentives and/or supply planning. Unlike large central station power plants, DG investments can be made in small increments and with lead-times as short as just a few months.

European governments are developing and refining various funding opportunities related to economic incentives and programs for DG operators. Our CHP systems may fit very well with these programs. Other than funding opportunities related to incentives and programs, there does not appear to be any new government regulations that will affect us.

EUROSITE POWER INC.

Competition We believe that the main competition for DG products is the established electric utility infrastructure. DG is beginning to gain acceptance in regions where energy customers are dissatisfied with the cost and reliability of traditional electricity service. These end-users, together with growing support from regulators, are creating a favorable climate for the growth of DG that is overcoming the objections of established utility providers. Those companies are much larger than us in terms of revenues, assets and resources. We expect to compete with large utility companies by selling its electricity to the same commercial building customers at a lower price. We will sell directly to each building customer, but typically only supply 20%-60% of the electricity needs of the building. The remaining portion will be supplied by the electric utility.

In the United Kingdom, we will primarily compete with Cogenco Limited, a subsidiary of Dalkia PLC, an alternative energy company with customers in the 50-500 kW range, ENER-G Holdings plc and Jenbacher, a subsidiary of General Electric Company. Other companies in the same market are Clarke Energy Ltd, EC Power Systems and Baxi-SenerTec UK. In Belgium, most CHP equipment manufacturers are non-Belgian companies, including CogenGreen S.A., Capstone Turbine Corporation and Cummins Power Generation Inc., which will be our primary competitors in the 50-500 kW range. In Spain, we will compete with Baxi-SenerTec UK, MicroPower Europe, Guascor Power, Cummins Power Generation Inc., Icogen SA and Pasch y Cia SA. Icogen SA, based in Barcelona, is the leading Spanish supplier for systems below 500 kW.

Engine manufacturers sell DG units that range in size from a few kWs to many MWs in size. Those manufacturers are predominantly greater than 1 MW and include Caterpillar Inc., Cummins Power Generation Inc., and Waukesha, a subsidiary of General Electric Company. In many cases, we view these companies as potential suppliers of equipment and not as competitors.

The alternative energy market is emerging rapidly. Many companies are developing alternative and renewable energy sources including solar power, wind power, fuel cells and micro-turbines. Some of the companies in this sector include General Electric Company, BP p.l.c, Royal Dutch Shell, SunEdison, a division of MEMC Electronic Materials, Inc. and Evergreen Solar, Inc. (in the solar energy space); Plug Power, Inc. and FuelCell Energy, Inc. (in the fuel cell space); and Capstone Turbine Corporation, Ingersoll Rand PLC and Elliott Turbomachinery, a division of the Elliott Group, Inc. (in the micro-turbine space). The effect of these developing technologies on our business is difficult to predict; however, when their technologies become more viable for our target markets, we may be able to adopt their technologies into our business model.

There are a number of energy service companies that offer related services.

These companies include Siemens AG, Honeywell International Inc. and Johnson Controls Inc. In general, these companies seek large, diverse projects for electric demand reduction for campuses that include building lighting and controls, and electricity (in rare occasions) or cooling. Because of their overhead structures, these companies often solicit large projects and stay away from individual properties. Since we will focus on smaller projects for energy supply, we will be well suited to work in tandem with these companies when the opportunity arises.

There are also a few local emerging cogeneration developers and contractors that are attempting to offer services similar to ours. To be successful, they will need to have the proper experience in equipment and technology, installation contracting, equipment maintenance and operation, site economic evaluation, project financing and energy sales plus the capability to cover a broad region.

Government Regulation We are not subject to extensive government regulation. We are required to file for local construction permits (electrical, mechanical and the like) and utility interconnects and we must make various filings in certain jurisdictions related to environmental emissions. Other than funding opportunities related to incentives and programs, there does not appear to be any new government regulations that may affect us.

Employees As of December 31, 2011, we had twelve employees, including four full time employees and one part time employee in the United Kingdom and seven part time employees in the United States. We believe that our relationship with our employees is satisfactory. None of our employees are represented by a collective bargaining agreement.

EUROSITE POWER INC.

Cost of Sales Cost of sales, including depreciation, in 2012 were $69,667 compared to $0 for the same period in 2011 due to commencing operations during the year.

Operating Expenses General and administrative expenses were $1,087,653 in 2012, compared to $854,502 for the same period in 2011, a increase of $233,151 or 27.3%. The general and administrative expenses increased due to additional legal fees and non-cash compensation expenses related to the issuance of option awards to our employees and directors.

Selling expenses were $608,964 in 2012, compared to $527,253 for the same period in 2011, an increase of $81,711 or 15.5%. Selling expenses increased due to the addition of two new employees.

Engineering expenses were $93,695 in 2012, compared to $0 for the same period in 2011. Engineering expenses increased due to the addition of a new employee.

Other Income Other income was $13,439 in 2012, compared to $333 for the same period in 2011, due to interest on our cash balance.

Net Loss Net loss was $1,765,430 in 2012, compared to net loss of $1,381,422 for the same period in 2011 due to increased operating expenses during the year.

Liquidity and Capital Resources Consolidated working capital at December 31, 2012 was $1,815,839. Included in working capital were cash and cash equivalents of $832,511.

Cash used in operating activities was $2,111,935 in 2012 compared to $1,039,593 in 2011. The Company's value added tax (VAT) receivable increased to $181,217 in 2012 compared to $77,197 in 2011 due to the shipping of energy systems to the United Kingdom. The Company's inventory balance increased to $1,173,729 at December 31, 2012 compared to $137,976 at December 31, 2011, using $1,035,753 of cash due to purchases of energy systems for operations in the United Kingdom.

The Company's accounts payable balance increased to $203,764 at December 31, 2012 compared to $57,349 at December 31, 2011 due to an increase in utilization of consulting services resulting in an increase of cash of $146,415. The Company's accrued expenses and other current liabilities increased to $62,385 at December 31, 2012 compared to $48,016 at December 31, 2011 due to consulting services and fund raising expenses resulting in an increase of cash of $14,369.

The Company's investing activities used $1,533,630 of cash in 2012, and the Company's financing activities provided $2,139,293 of cash, net of costs, in 2012 from the sale of common stock.

The Company owns the energy-producing equipment at the customer's site; therefore, the business is capital intensive. The Company believes that its existing resources, including cash and cash equivalents, future cash flow from operations, its ability to control certain costs, including those related to general and administrative expenses, and the use of capital from its parent company, will be sufficient to meet the working capital requirements of its existing business for the foreseeable future, including the next 12 months; however, as the Company continues to grow its business by adding more energy systems, the cash requirements will increase. Beyond March 31, 2014, if the Company cannot raise capital by the existing equity fundraising effort, it may need to raise additional capital through a debt financing or use capital provided by its parent to meet its operating and capital needs. There can be no assurance, however, that the Company will be successful in these fund-raising efforts or that additional funds will be available on acceptable terms, if at all.

Our ability to continue to access capital could be impacted by various factors including general market conditions and the continuing slowdown in the economy, interest rates, the perception of our potential future earnings and cash 19-------------------------------------------------------------------------------- Table of Contents EUROSITE POWER INC.

Item 1. Business.

General EuroSite Power Inc., or the Company, we, our or us, has been organized to distribute, own and operate clean, on-site energy systems that produce electricity, hot water, heat and cooling in the United Kingdom and Europe. Our business model is to own the equipment that we install at customers' facilities and to sell the energy produced by these systems to the customers on a long-term contractual basis at prices guaranteed to the customer to be below conventional utility rates. We call this business the EuroSite Power "On-Site Utility". As of December 31, 2011, the Company did not have any installations in the United Kingdom or Europe.

The Company was incorporated as a Delaware corporation on July 9, 2010 and is currently an 82.8% subsidiary of American DG Energy Inc., or American DG Energy.

American DG Energy is an onsite energy company that sells energy in the form of electricity, heat, hot water and air conditioning under long-term contracts with commercial, institutional and light industrial customers in the United States.

EuroSite Power plans to introduce the American DG Energy business model to the United Kingdom and Europe.

On September 17, 2010, the Company registered as a wholly-owned subsidiary EuroSite Power Limited with the Registrar of Companies for England and Wales, to introduce the American DG Energy business model to the United Kingdom only. As the Company grows beyond the United Kingdom into other parts of Europe, it is expected that it will set up separate wholly-owned subsidiaries to do business in those countries. We currently estimate that our first revenues from equipment installations in the United Kingdom and the European market will be generated by the fourth quarter of 2012. The Company's website is at www.eurositepower.co.uk, but our website address included in this Annual Report is a textual reference only and the information in the website is not incorporated by reference into this Annual Report.

The Company has three affiliated companies, namely Tecogen Inc., or Tecogen, Ilios Inc., or Ilios, and GlenRose Instruments Inc., or GlenRose Instruments.

These companies are affiliates because several of the major shareholders of American DG Energy, the Company's corporate parent, have significant ownership positions in Tecogen, Ilios and GlenRose Instruments. Tecogen, Ilios and GlenRose Instruments do not own any shares of the Company, and the Company does not own any shares of Tecogen, Ilios or GlenRose Instruments. The common shareholders include John N. Hatsopoulos, who is the Chairman of the Company and GlenRose Instruments, the Chief Executive Officer and director of American DG Energy and Tecogen, and a director of Ilios. Also, Dr. George N. Hatsopoulos, who is John N. Hatsopoulos' brother, is the Chairman of American DG Energy, a director of Tecogen and an investor in GlenRose Instruments and Ilios.

Tecogen is a leading manufacturer of combined heat and power products, or CHP, including natural gas engine-driven cogeneration and air conditioning systems for industrial and commercial use. Ilios is a subsidiary of Tecogen that was formed in April 2009 to develop and distribute a line of ultra-high-efficiency heating products, such as a high efficiency water heater, that provide twice the efficiency of conventional boilers, based on management estimates, for commercial and industrial applications utilizing advanced thermodynamic principles. American DG Energy and EuroSite Power purchase energy equipment from various suppliers. The primary types of equipment used are natural gas engine-driven cogeneration and air conditioning systems provided by Tecogen and Ilios. Both Tecogen and American DG Energy will distribute the Ilios products.

The business of GlenRose Instruments is not related to the business of American DG Energy, the Company and their other corporate affiliates.

In July 2011, the Company hired a Managing Director in the United Kingdom to put together a sales and marketing team in order to generate revenues from equipment installations. As of the date of this Annual Report on Form 10-K, the Company did not have any operations, has not generated revenues or sold any energy systems.

When we commence operations, our On-Site Utility will supply electricity, heat, hot water and cooling at a discounted price to properties such as healthcare facilities, hotels, large, multi-family housing, leisure centers, schools and colleges. The Company's natural gas-powered cogeneration systems will produce electricity from an internal combustion engine that drives a generator, while the heat from the engine and exhaust is recovered and typically used to produce heat and hot water for use at the site. The Company will also distribute and operate water chiller systems for building cooling applications that operate in a similar manner, except that the engine's power drives a large air-conditioning compressor while recovering heat for hot water. Cogeneration systems reduce the amount of electricity that the customer must purchase from the local utility at a higher cost, and produce valuable heat and hot water for the site to use as required. By simultaneously providing electricity, hot water and heat, cogeneration systems also have a significant, positive impact on the environment by reducing the carbon or CO2 produced. Reliability is also enhanced because the customer remains connected to the electric grid and the failure of either source of electricity does not result in a power outage.

EUROSITE POWER INC.Distributed Generation of electricity, or DG, is often referred to as cogeneration, or combined heat and power systems, or CHP. DG is an attractive option for reducing energy costs and increasing the reliability of available energy. DG has been successfully implemented by others in large industrial installations over 10 Megawatts, or MW, where the market has been growing for several years, and is increasingly being accepted in the smaller size installations that we target because of technology improvements, increased energy costs and better DG economics. We believe that our target market (users of up to 1 MW) has barely been penetrated in the United Kingdom and Europe and that the reduced reliability of the utility grid, increasing cost pressures experienced by energy users, advances in new, low-cost technologies and DG-favorable legislation and regulation may drive the Company's near-term growth and penetration into its target market.

The following is a summary of the reasons why we believe that the United Kingdom and European markets are attractive: Our target countries (beginning with the United Kingdom, to be followed by Spain and Belgium) have large, urban markets with a high local density of target customers with large buildings in major cities (including hotels, healthcare facilities and large multi-family residential buildings).

Significant incentives, rebates and support are available for the installation and operation of CHP systems in Europe.

Government policy in Europe currently favors energy-efficient and environmentally friendly technologies and businesses.

Other companies deploying CHP systems have generated revenue from the environmental and carbon benefits of their systems.

Electricity prices are expected to increase significantly in Europe in the coming years.

The competition is focused on larger systems (both in footprint size and in kilowatts, or energy size). Our inverter-based InVerde 100-kW is small enough to fit into smaller buildings and has the proper energy production to match more buildings based on hot water needs. We expect to offer the only inverter-based CHP on the market.

Our potential customers are aware of and seeking energy- and environmentally- friendly solutions. However, capital budgets have shrunk or disappeared. The On-Site Utility approach requiring no customer capital might fit the market needs well.

Our sales model will target the top property owners with suitable operations for our On-Site Utility. Our direct sales team, advisory board and sales partners will be selected to target these customers.

Due to the slowdown in the economy, we will have many options to select technical partners to aid in installing and maintaining the energy systems.

These will range from existing competitors to mechanical contractors.

We expect, at the outset, to use our domestic systems (in the United States) to handle items such as system monitoring and customer billing.

There should be a special opportunity and advantage to sell cogeneration equipment running on natural gas in central London and in Europe because these areas already have electrical capacity connection constraints such that a natural gas chiller is likely to provide better economics to the customer and may reduce dependence on the electrical grid for other usages in the building.

With the additional introduction of the Ilios high efficiency water heater in the first half of 2012, and the introduction of the Low Emissions Technology in August of 2011, developed by Tecogen we expect to market a full array of highly innovative, efficient, and low emissions technologies to produce, electricity, hot water, heat and cooling.

CHP is already widely supported by governments in the European Union with many forms of government assistance provided to promote its use. In the European Union countries, CHP is widely viewed as a key measure to enable achievement of target reductions in greenhouse gas emissions. Legislation forcing companies to reduce their carbon footprint is having a large impact on CHP sales; there are also planning laws which force new building owners to provide at least 10% of their power supply from renewable sources (CHP is deemed renewable from a planning perspective). For example, the London Energy plan specifically supports and promotes CHP as a technology. We believe that our primary near-term opportunity for distributed generation energy and equipment sales is where commercial electricity rates exceed $0.12 per kW hour, or kWh. Attractive DG economics are currently attainable in applications that include hospitals, nursing homes, multi-tenant residential housing, hotels, schools and colleges, recreational facilities, food processing plants, dairies and other light industrial facilities.

When we commence operations we will purchase energy equipment from various suppliers. The primary type of equipment used will be a natural gas-powered, reciprocating engine provided by Tecogen, a leading manufacturer of natural gas engine-driven commercial and industrial cooling and cogeneration systems that are suitable for a variety of applications. A CHP system simultaneously produces two types of energy - heat and electricity - from a single fuel source, often natural gas. The two key components of a CHP system are an internal combustion reciprocating engine and an electric generator. The internal combustion reciprocating engine is provided to Tecogen by General Motors Company modified to run on natural gas and is a low-cost, mass-produced, internal combustion engine that is used primarily in light trucks and sport utility vehicles. The clean natural gas fired engine spins a generator to produce electricity. The natural byproduct of the working engine is heat. The heat is captured and used to supply space heating, heating domestic hot water, laundry hot water or to provide heat for swimming pools and spas.

EUROSITE POWER INC.The Company will also purchase energy equipment from Ilios. Based on management estimates, the equipment developed by Ilios, such as a high efficiency water heater, provides twice the efficiency of conventional boilers for commercial and industrial applications utilizing advanced thermodynamic principles. The Ilios products incorporate mechanical work to extract heat from the environment in order to supplement the chemical energy available in the fuel. The result is a significant boost in efficiency and reduction in carbon emissions.

As other power sources that use alternative energy technologies mature to the point that they are reliable and economical, we may consider employing them to supply energy for our customers. We regularly assess the technical, economic, and reliability issues associated with systems that use solar, micro-turbine or fuel cell technologies to generate power.

The Company and its Affiliates American DG Energy, GlenRose Instruments, Tecogen and Ilios, are affiliated companies by virtue of common ownership. Specifically, John N. Hatsopoulos who is the Chairman of the Company is: (a) the Chief Executive Officer and director of American DG Energy and holds 12.2% of the company's common stock, (b) the Chief Executive Officer and director of Tecogen and holds 27.6% of the company's common stock, (c) a director of Ilios and holds 7.3% of the company's common stock, and (d) the Chairman of GlenRose Instruments and holds 15.7% of the company's common stock. Dr. George N. Hatsopoulos, who is John N. Hatsopoulos' brother, is: (a) a director of American DG Energy and holds 14.7% of the company's common stock, (b) a director of Tecogen and holds 26.2% of the company's common stock, (c) an investor in Ilios and holds 2.9% of the company's common stock and (d) an investor of GlenRose Instruments and holds 15.7% of the company's common stock.

Background and Market The delivery of energy services to commercial and residential customers has evolved over many decades into an inefficient and increasingly unreliable structure. Power for lighting, air conditioning, refrigeration, communications and computing demands comes almost exclusively from centralized power plants serving users through a complex grid of transmission and distribution lines and substations. Even with continuous improvements in central station generation and transmission technologies, today's power industry according to the Energy Information Administration is only about 33% efficient, meaning that it discharges to the environment roughly twice as much heat as the amount of electrical energy delivered to end-users. Since coal accounts for a large part of electric power generation, these inefficiencies are a major contributor to rising atmospheric CO2 emissions. Countermeasures being sought to limit global warming are expected to favor the deployment of alternative energy technologies.

Most thermal energy for space heating and hot water services is produced by on-site boilers and furnaces that burn either natural gas or petroleum distillate fuels. This separation of thermal and electrical energy supply services has persisted despite a general recognition that CHP can be significantly more energy efficient than central generation of electricity only.

Except in large-scale industrial applications (e.g., paper and chemical manufacturing), cogeneration has not attained general acceptance. This has been due, in part, to the long-established monopoly-like structure of the regulated utility industry. Also, the technologies previously available for small on-site cogeneration systems were incapable of delivering the reliability, cost and environmental performance necessary to displace or even substantially modify the established power industry structure.

The Role of Distributed Generation Distributed Generation is the production of two sources or two types of energy (electricity or cooling and heat) from a single energy source (natural gas). We will use technology that utilizes a low-cost, mass-produced, internal combustion engine from General Motors, used primarily in light trucks and sport utility vehicles that is modified to run on natural gas. The engine spins either a standard generator to produce electricity, or a conventional compressor to produce cooling. For heating, since the working engine generates heat, we capture the byproduct heat with a heat exchanger and utilize the heat for facility applications in the form of space heating and hot water for buildings or industrial facilities. This process is very similar to an automobile, where the engine provides the motion to the automobile and the byproduct heat is used to keep the passengers warm during the winter months. For refrigeration or cooling, standard available equipment uses an electric motor to spin a conventional compressor to make cooling. We will replace the electric motor with the same modified engine that runs on natural gas to spin the compressor to run a refrigeration cycle and produce cooling.

EUROSITE POWER INC.Distributed generation refers to the application of small-scale energy production systems, including electricity generators, at locations in close proximity to the end-use loads that they serve. Integrated energy systems, operating at user sites but interconnected to existing electric distribution networks, can reduce demand on the nation's utility grid, increase energy efficiency, avoid the waste inherent in long distance wire and cable transmission of electricity, reduce air pollution and greenhouse gas emissions, and protect against power outages, while,in most cases, significantly lowering utility costs for power users and building operators.

Until recently, many DG technologies have not been a feasible alternative to traditional energy sources because of economic, technological and regulatory considerations. Even now, many "alternative energy" technologies (such as solar, wind, fuel cells and micro-turbines) have not been sufficiently developed or proven to economically meet the demands of commercial users or the ability to be connected to the existing utility grid.

When we commence operations we intend to supply cogeneration systems that are capable of meeting the demands of commercial users and that can be connected to the existing utility grid. Specific advantages of the Company's On-Site Utility approach of multiple energy services, compared with traditional centralized generation and distribution of electricity alone, include the following: Greatly increased overall energy efficiency (up to 90% versus less than 33% for the existing power grid), according to the Environmental and Energy Study Institute, or EESI1.

Rapid adaptation to changing demand requirements (e.g., weeks, not years to add new generating capacity where and when it is needed).

Ability to by-pass transmission line and substation bottlenecks in congested service areas.

Avoidance of site and right-of-way issues affecting large-scale power generation and distribution projects.

Clean operation, from using natural gas fired reciprocating engines using microprocessor combustion controls and low-cost exhaust catalyst technology developed for automobiles.

Rapid economic paybacks for equipment investments, often three to five years when compared to existing utility costs and technologies.

Relative insensitivity to fuel prices due to high overall efficiencies achieved with cogeneration of electricity and thermal energy services, including the use of waste heat to operate absorption type air conditioning systems (displacing electric-powered cooling capacity at times of peak summer demand).

Reduced vulnerability of multiple de-centralized small-scale generating units compared to the risk of major outages from natural disasters or terrorist attacks against large central-station power plants and long distance transmission lines.

Ability to remotely monitor, control and dispatch energy services on a real-time basis using advanced switchgear, software, microprocessor and internet modalities. Through our on-site energy products and services, energy users will be able to optimize, in real time, the mix of centralized and distributed electricity-generating resources.

Also, DG systems possess significant positive environmental impact. The United States Environmental Protection Agency, or EPA, has created a Combined Heat and Power Partnership to promote the benefits of DG systems. The Company is a member of this Partnership. The following statement is found on the EPA web site.

"Combined heat and power systems offer considerable environmental benefits when compared with purchased electricity and onsite-generated heat. By capturing and utilizing heat that would otherwise be wasted from the production of electricity, CHP systems require less fuel than equivalent separate heat and power systems to produce the same amount of energy. Because less fuel is combusted, greenhouse gas emissions, such as carbon dioxide (CO2), as well as criteria air pollutants like nitrogen oxides (NOx) and sulfur dioxide (SO2), are reduced.2" The disadvantages of the Company's On-Site Utility are: Cogeneration is a mechanical process and our equipment will be susceptible to downtime or failure.

1 See Environmental and Energy Study Institute (EESI), Energy Generation and Distribution Efficiency, http://www.eesi.org/generation_distribution. This website address and any other website addresses included in this Annual Report on Form 10-K are included as textual references only and the information in such websites is not incorporated by reference into this Annual Report on Form 10-K.

2 See: http://epa.gov/chp/basic/environmental.html. This website address and any other website addresses included in this Annual Report on Form 10-K are included as textual references only and the information in such websites is not incorporated by reference into this Annual Report on Form 10-K.

EUROSITE POWER INC.

The base-rate of an electric utility is determined by a certain number of subscribers. DG at a significant scale may reduce the number of subscribers and therefore it may increase the base-rate for the electric utility for its customer base.

By committing to our long-term agreements, a customer may be forfeiting the opportunity to use more efficient technology that may become available in the future.

The DG Market Opportunity We believe that our primary near-term opportunity for DG energy and equipment sales is where commercial electricity rates exceed $0.12 per kWh. Attractive DG economics in the United Kingdom and Europe are currently attainable in applications that include hospitals, nursing homes, multi-tenant residential housing, hotels, schools and colleges, recreational facilities, food processing plants, dairies and other light industrial facilities.

Early in 2010, American DG Energy performed a feasibility study of the European market to determine the viability of expanding its On-Site Utility business into Europe. This study and business plan report reached the conclusions that: (a) there is untapped customer demand to provide small-scale CHP packages in the commercial sector through a fully financed, output-based electricity and hot water contract, (b) there is a lack of competition in this space in the target customer segments (hotel, healthcare and multi-tenant residential) and (c) the underlying economic fundamentals are attainable, with a combination of sufficient spark spreads and government fiscal support.

The study analyzed the entire European market; however it focused on the United Kingdom, Spain and Belgium as the primary markets to start operations. The study estimated that there are over 13,700 sites in those three countries providing a $900 million annual electricity market plus a $600 million heat and hot water energy market, for a combined market potential of $1.5 billion. The data used to calculate the Company's market potential is derived by Company estimates.

However, our business model is untested in the United Kingdom and Europe, and we have not installed any equipment there and have no customer contracts there. It is extremely difficult to predict whether we will achieve any success in developing our business. There can be no assurance that we will generate revenues or that revenues will generate profits or be sufficient to maintain our business. American DG Energy, our parent, has experienced total net losses since inception of approximately $17.9 million. For the foreseeable future, we expect to experience continuing operating losses and negative cash flows from operations as our management attempts to execute our current business plan." Business Model Our parent, American DG Energy is an onsite energy company that sells energy in the form of electricity, heat, hot water and air conditioning under long-term contracts with commercial, institutional and light industrial customers. We intend to implement our parent's business strategy in the United Kingdom and Europe by installing our systems at no cost to our customers and retaining ownership of the system. Because our systems may operate at up to 90% efficiency, according to the EESI (versus less than 33% for the existing power grid), we expect to be able to sell the energy produced by these systems to our customers at prices below their existing cost of electricity (or air conditioning), heat and hot water. Our cogeneration systems will consist of natural gas-powered internal combustion engines that drive an electrical generator to produce electricity and that capture the engine heat to produce space heating and hot water. Our energy systems may also be configured to drive a compressor that produces air conditioning and that also captures the engine heat.

To date, American DG Energy's installations all run in conjunction with the electric utility grid and require standard interconnection approval from the local utility. Our customers use both our energy system and the electric utility grid for their electricity requirements. We will typically supply the first 20% to 60% of the building's electricity requirements while the remaining electricity is supplied by the electric utility grid. Our customers will be contractually bound to use the energy we supply.

To date, the price that American DG Energy has charged its customers is set forth in customer contracts at a discount to the price of the building's local electric utility. For the 20% to 60% portion of the customer's electricity that is supplied, the customer realizes immediate savings on its electric bill. In addition to electricity, it sells the heat and hot water at the same price the customer was previously paying or at a discount equivalent to the customer's discount on electricity. Air conditioning systems are also priced at a discount so that the customer realizes overall cost savings from the installation.

Since we intend to own and operate the energy systems and since customers have no investment in the units, we expect that our customers will benefit from no capital requirements and no operating responsibilities. We will operate the energy systems so our customers require no staff and have no energy system responsibilities; they are bound, however, to pay for the energy supplied by the energy systems over the term of the agreement.

EUROSITE POWER INC.Energy and Products Portfolio We will provide the same full range of CHP product and energy options that are provided by American DG Energy, including: Energy Sales Energy Producing Products Turnkey Installation Energy Producing Products with Incentives Other Revenue Opportunities Energy Sales For customers seeking an alternative to the outright purchase of CHP equipment, we will install, maintain, finance, own and operate complete on-site CHP systems that supply, on a long-term, contractual basis, electricity and other energy services. Our business model is to sell the energy to customers at a guaranteed discount rate to the rates charged by conventional utility suppliers. Customers will be billed monthly and benefit from a reduction in their current energy bills without the capital costs and risks associated with owning and operating a cogeneration or chiller system. Also, by outsourcing the management and financing of on-site energy facilities to us, they will reap the economic advantages of DG without the need for retaining specialized in-house staff with skills unrelated to their core business. Customers will benefit from our On-Site Utility in a number of ways: Guaranteed lower price for energy Only pay for the energy they use No capital costs for equipment, engineering and installation No equipment operating costs for fuel and maintenance Immediate cash flow improvement Significant green impact by the reduction of carbon produced No staffing, operations and equipment responsibility Our customers will pay us for energy produced on site at a rate that is a certain percentage below the rate at which the utility companies provide them electrical and natural gas services. We will measure the actual amount of electrical and thermal energy produced, and charge our customers accordingly. We intend to install, operate, maintain and repair our energy systems at our sole cost and expense. We also intend to obtain any necessary permits or regulatory approvals at our sole expense. Our agreements will generally be for a term of 15 years, renewable for two additional five years terms upon the mutual agreement of the parties.

In regions where high electricity rates prevail, monthly payments for CHP energy services can yield attractive paybacks (e.g. often 3-5 years) on our investments in On-Site Utility projects. We expect the price of natural gas to have a minor effect on the financial returns obtained from our energy service contracts because the value of hot water and other thermal services produced from the recovered heat generated by the internal combustion engine in our On-Site Utility system will increase in proportion to higher fuel costs. This recovered energy, which comprises up to 60% of the total heating value of fuel supplied to the CHP equipment, displaces fuel that would otherwise be burned in conventional boilers.

Energy Producing Products We intend to offer cogeneration units sized to produce 100 kW of electricity, water chillers sized to produce 200 to 400 tons of cooling and high efficiency water heaters. For cogeneration, we prefer a modular design approach to allow us to group multiple units together to serve customers with considerably larger power requirements. Often, cogeneration units are conveniently dispersed within a large operation, such as a hospital or campus, serving multiple process heating systems that would otherwise be impractical to serve from a single large machine. The equipment we select often yield overall energy efficiencies in excess of 80% (from our equipment supplier's specifications).

EUROSITE POWER INC.We will also purchase energy equipment that incorporates mechanical work to extract heat from the environment in order to supplement the chemical energy available in the fuel. The result of that equipment is a significant boost in efficiency and carbon emissions benefit relative to conventional heating systems.

Many other DG technologies are challenged by technical, economic and reliability issues associated with systems that generate power using solar, micro-turbine or fuel cell technologies, which have not yet proven to be economical for typical customer needs. As other power sources that use alternative energy technologies mature to the point that they are reliable and economical, we may consider employing them to supply energy for our customers.

Service and Installation Where appropriate, we intend to utilize the best local service infrastructure for the equipment we deploy. We will require long-term maintenance contracts and ongoing parts sales. Our centralized remote monitoring capability will allow us to keep track of our equipment in the field. Our installations will be performed by local contractors with experience in energy cogeneration systems.

For the occasional customers that want to own the CHP system themselves, we will offer our "turn-key" option whereby we will sell equipment and provide systems engineering, installation, interconnect approvals, on-site labor and startup services needed to bring the complete CHP system on-line. For some customers, we will also require a fee to operate the systems and may receive a portion of the savings generated from the equipment.

Other Funding and Revenue Opportunities The Company may be able to participate in the demand response market and receive payments due to the availability of its energy systems when operations commence.

Demand response programs provide payments for either the reduction of electricity usage or the increase in electricity production during periods of peak usage throughout a utility territory. Since our systems are highly efficient, when we commence operations, we may be able to participate in various carbon reduction markets. We are currently not involved in any such activity as described above.

Sales and Marketing We intend to offer cogeneration units sized to produce 100 kW of electricity and water chillers sized to produce 200 to 400 tons of cooling. Our On-Site Utility services will be sold directly to end-users by our in-house marketing team and by established sales agents and representatives. In July 2011, we hired a Managing Director in the United Kingdom to put together a sales and marketing team in order to generate revenues from equipment installations. We will also hire service and support staff, but do not expect to expend significant funds in filling those positions. As of the date of this Annual Report on Form 10-K, the Company did not have any operations, has not generated revenues or sold any energy systems.

Our On-Site Utility services will be sold directly to end-users by our in-house marketing team and by established sales agents and representatives. We will offer standardized packages of energy, equipment and services suited to the needs of property owners and operators in healthcare, hospitality, large residential, athletic facilities and certain industrial sites. This includes national accounts and other customer groups having a common set of energy requirements at multiple locations.

Our energy offering is translated into direct financial gain for our clients, and is best appreciated by senior management. These clients recognize the gain in cash flow, the increase in net income and the preservation of capital we offer. As such, our energy sales will be focused on reaching these decision makers.

We also intend to expand our sales efforts by developing joint marketing initiatives with key industry suppliers. Particularly important will be collaborative programs with natural gas utility companies. Since the economic viability of any CHP project is critically dependent upon effective utilization of recovered heat, the insight of the gas supplier to the customer energy profile is particularly effective in prospecting the most cost-effective DG sites in any region.

DG is currently enjoying growing support among utility regulators seeking to increase the reliability of electricity supply with cost effective environmentally responsible demand-side resources. Many European countries encourage DG through inter-connecting standards, incentives and/or supply planning. Unlike large central station power plants, DG investments can be made in small increments and with lead-times as short as just a few months.

European governments are developing and refining various funding opportunities related to economic incentives and programs for DG operators. Our CHP systems may fit very well with these programs. Other than funding opportunities related to incentives and programs, there does not appear to be any new government regulations that will affect us.

EUROSITE POWER INC.

Competition We believe that the main competition for DG products is the established electric utility infrastructure. DG is beginning to gain acceptance in regions where energy customers are dissatisfied with the cost and reliability of traditional electricity service. These end-users, together with growing support from regulators, are creating a favorable climate for the growth of DG that is overcoming the objections of established utility providers. Those companies are much larger than us in terms of revenues, assets and resources. We expect to compete with large utility companies by selling its electricity to the same commercial building customers at a lower price. We will sell directly to each building customer, but typically only supply 20%-60% of the electricity needs of the building. The remaining portion will be supplied by the electric utility.

In the United Kingdom, we will primarily compete with Cogenco Limited, a subsidiary of Dalkia PLC, an alternative energy company with customers in the 50-500 kW range, ENER-G Holdings plc and Jenbacher, a subsidiary of General Electric Company. Other companies in the same market are Clarke Energy Ltd, EC Power Systems and Baxi-SenerTec UK. In Belgium, most CHP equipment manufacturers are non-Belgian companies, including CogenGreen S.A., Capstone Turbine Corporation and Cummins Power Generation Inc., which will be our primary competitors in the 50-500 kW range. In Spain, we will compete with Baxi-SenerTec UK, MicroPower Europe, Guascor Power, Cummins Power Generation Inc., Icogen SA and Pasch y Cia SA. Icogen SA, based in Barcelona, is the leading Spanish supplier for systems below 500 kW.

Engine manufacturers sell DG units that range in size from a few kWs to many MWs in size. Those manufacturers are predominantly greater than 1 MW and include Caterpillar Inc., Cummins Power Generation Inc., and Waukesha, a subsidiary of General Electric Company. In many cases, we view these companies as potential suppliers of equipment and not as competitors.

The alternative energy market is emerging rapidly. Many companies are developing alternative and renewable energy sources including solar power, wind power, fuel cells and micro-turbines. Some of the companies in this sector include General Electric Company, BP p.l.c, Royal Dutch Shell, SunEdison, a division of MEMC Electronic Materials, Inc. and Evergreen Solar, Inc. (in the solar energy space); Plug Power, Inc. and FuelCell Energy, Inc. (in the fuel cell space); and Capstone Turbine Corporation, Ingersoll Rand PLC and Elliott Turbomachinery, a division of the Elliott Group, Inc. (in the micro-turbine space). The effect of these developing technologies on our business is difficult to predict; however, when their technologies become more viable for our target markets, we may be able to adopt their technologies into our business model.

There are a number of energy service companies that offer related services.

These companies include Siemens AG, Honeywell International Inc. and Johnson Controls Inc. In general, these companies seek large, diverse projects for electric demand reduction for campuses that include building lighting and controls, and electricity (in rare occasions) or cooling. Because of their overhead structures, these companies often solicit large projects and stay away from individual properties. Since we will focus on smaller projects for energy supply, we will be well suited to work in tandem with these companies when the opportunity arises.

There are also a few local emerging cogeneration developers and contractors that are attempting to offer services similar to ours. To be successful, they will need to have the proper experience in equipment and technology, installation contracting, equipment maintenance and operation, site economic evaluation, project financing and energy sales plus the capability to cover a broad region.

Government Regulation We are not subject to extensive government regulation. We are required to file for local construction permits (electrical, mechanical and the like) and utility interconnects and we must make various filings in certain jurisdictions related to environmental emissions. Other than funding opportunities related to incentives and programs, there does not appear to be any new government regulations that may affect us.

Employees As of December 31, 2011, we had twelve employees, including four full time employees and one part time employee in the United Kingdom and seven part time employees in the United States. We believe that our relationship with our employees is satisfactory. None of our employees are represented by a collective bargaining agreement.

PART I Item 1. Business.

General EuroSite Power Inc., or the Company, we, our or us, has been organized to distribute, own and operate clean, on-site energy systems that produce electricity, hot water, heat and cooling in the United Kingdom and Europe. Our business model is to own the equipment that we install at customers' facilities and to sell the energy produced by these systems to the customers on a long-term contractual basis at prices guaranteed to the customer to be below conventional utility rates. We call this business the EuroSite Power "On-Site Utility". As of December 31, 2011, the Company did not have any installations in the United Kingdom or Europe.

The Company was incorporated as a Delaware corporation on July 9, 2010 and is currently an 82.8% subsidiary of American DG Energy Inc., or American DG Energy.

American DG Energy is an onsite energy company that sells energy in the form of electricity, heat, hot water and air conditioning under long-term contracts with commercial, institutional and light industrial customers in the United States.

EuroSite Power plans to introduce the American DG Energy business model to the United Kingdom and Europe.

On September 17, 2010, the Company registered as a wholly-owned subsidiary EuroSite Power Limited with the Registrar of Companies for England and Wales, to introduce the American DG Energy business model to the United Kingdom only. As the Company grows beyond the United Kingdom into other parts of Europe, it is expected that it will set up separate wholly-owned subsidiaries to do business in those countries. We currently estimate that our first revenues from equipment installations in the United Kingdom and the European market will be generated by the fourth quarter of 2012. The Company's website is at www.eurositepower.co.uk, but our website address included in this Annual Report is a textual reference only and the information in the website is not incorporated by reference into this Annual Report.

The Company has three affiliated companies, namely Tecogen Inc., or Tecogen, Ilios Inc., or Ilios, and GlenRose Instruments Inc., or GlenRose Instruments.

These companies are affiliates because several of the major shareholders of American DG Energy, the Company's corporate parent, have significant ownership positions in Tecogen, Ilios and GlenRose Instruments. Tecogen, Ilios and GlenRose Instruments do not own any shares of the Company, and the Company does not own any shares of Tecogen, Ilios or GlenRose Instruments. The common shareholders include John N. Hatsopoulos, who is the Chairman of the Company and GlenRose Instruments, the Chief Executive Officer and director of American DG Energy and Tecogen, and a director of Ilios. Also, Dr. George N. Hatsopoulos, who is John N. Hatsopoulos' brother, is the Chairman of American DG Energy, a director of Tecogen and an investor in GlenRose Instruments and Ilios.

Tecogen is a leading manufacturer of combined heat and power products, or CHP, including natural gas engine-driven cogeneration and air conditioning systems for industrial and commercial use. Ilios is a subsidiary of Tecogen that was formed in April 2009 to develop and distribute a line of ultra-high-efficiency heating products, such as a high efficiency water heater, that provide twice the efficiency of conventional boilers, based on management estimates, for commercial and industrial applications utilizing advanced thermodynamic principles. American DG Energy and EuroSite Power purchase energy equipment from various suppliers. The primary types of equipment used are natural gas engine-driven cogeneration and air conditioning systems provided by Tecogen and Ilios. Both Tecogen and American DG Energy will distribute the Ilios products.

The business of GlenRose Instruments is not related to the business of American DG Energy, the Company and their other corporate affiliates.

In July 2011, the Company hired a Managing Director in the United Kingdom to put together a sales and marketing team in order to generate revenues from equipment installations. As of the date of this Annual Report on Form 10-K, the Company did not have any operations, has not generated revenues or sold any energy systems.

When we commence operations, our On-Site Utility will supply electricity, heat, hot water and cooling at a discounted price to properties such as healthcare facilities, hotels, large, multi-family housing, leisure centers, schools and colleges. The Company's natural gas-powered cogeneration systems will produce electricity from an internal combustion engine that drives a generator, while the heat from the engine and exhaust is recovered and typically used to produce heat and hot water for use at the site. The Company will also distribute and operate water chiller systems for building cooling applications that operate in a similar manner, except that the engine's power drives a large air-conditioning compressor while recovering heat for hot water. Cogeneration systems reduce the amount of electricity that the customer must purchase from the local utility at a higher cost, and produce valuable heat and hot water for the site to use as required. By simultaneously providing electricity, hot water and heat, cogeneration systems also have a significant, positive impact on the environment by reducing the carbon or CO2 produced. Reliability is also enhanced because the customer remains connected to the electric grid and the failure of either source of electricity does not result in a power outage.

EUROSITE POWER INC.Distributed Generation of electricity, or DG, is often referred to as cogeneration, or combined heat and power systems, or CHP. DG is an attractive option for reducing energy costs and increasing the reliability of available energy. DG has been successfully implemented by others in large industrial installations over 10 Megawatts, or MW, where the market has been growing for several years, and is increasingly being accepted in the smaller size installations that we target because of technology improvements, increased energy costs and better DG economics. We believe that our target market (users of up to 1 MW) has barely been penetrated in the United Kingdom and Europe and that the reduced reliability of the utility grid, increasing cost pressures experienced by energy users, advances in new, low-cost technologies and DG-favorable legislation and regulation may drive the Company's near-term growth and penetration into its target market.

The following is a summary of the reasons why we believe that the United Kingdom and European markets are attractive: Our target countries (beginning with the United Kingdom, to be followed by Spain and Belgium) have large, urban markets with a high local density of target customers with large buildings in major cities (including hotels, healthcare facilities and large multi-family residential buildings).

Significant incentives, rebates and support are available for the installation and operation of CHP systems in Europe.

Government policy in Europe currently favors energy-efficient and environmentally friendly technologies and businesses.

Other companies deploying CHP systems have generated revenue from the environmental and carbon benefits of their systems.

Electricity prices are expected to increase significantly in Europe in the coming years.

The competition is focused on larger systems (both in footprint size and in kilowatts, or energy size). Our inverter-based InVerde 100-kW is small enough to fit into smaller buildings and has the proper energy production to match more buildings based on hot water needs. We expect to offer the only inverter-based CHP on the market.

Our potential customers are aware of and seeking energy- and environmentally- friendly solutions. However, capital budgets have shrunk or disappeared. The On-Site Utility approach requiring no customer capital might fit the market needs well.

Our sales model will target the top property owners with suitable operations for our On-Site Utility. Our direct sales team, advisory board and sales partners will be selected to target these customers.

Due to the slowdown in the economy, we will have many options to select technical partners to aid in installing and maintaining the energy systems.

These will range from existing competitors to mechanical contractors.

We expect, at the outset, to use our domestic systems (in the United States) to handle items such as system monitoring and customer billing.

There should be a special opportunity and advantage to sell cogeneration equipment running on natural gas in central London and in Europe because these areas already have electrical capacity connection constraints such that a natural gas chiller is likely to provide better economics to the customer and may reduce dependence on the electrical grid for other usages in the building.

With the additional introduction of the Ilios high efficiency water heater in the first half of 2012, and the introduction of the Low Emissions Technology in August of 2011, developed by Tecogen we expect to market a full array of highly innovative, efficient, and low emissions technologies to produce, electricity, hot water, heat and cooling.

CHP is already widely supported by governments in the European Union with many forms of government assistance provided to promote its use. In the European Union countries, CHP is widely viewed as a key measure to enable achievement of target reductions in greenhouse gas emissions. Legislation forcing companies to reduce their carbon footprint is having a large impact on CHP sales; there are also planning laws which force new building owners to provide at least 10% of their power supply from renewable sources (CHP is deemed renewable from a planning perspective). For example, the London Energy plan specifically supports and promotes CHP as a technology. We believe that our primary near-term opportunity for distributed generation energy and equipment sales is where commercial electricity rates exceed $0.12 per kW hour, or kWh. Attractive DG economics are currently attainable in applications that include hospitals, nursing homes, multi-tenant residential housing, hotels, schools and colleges, recreational facilities, food processing plants, dairies and other light industrial facilities.

When we commence operations we will purchase energy equipment from various suppliers. The primary type of equipment used will be a natural gas-powered, reciprocating engine provided by Tecogen, a leading manufacturer of natural gas engine-driven commercial and industrial cooling and cogeneration systems that are suitable for a variety of applications. A CHP system simultaneously produces two types of energy - heat and electricity - from a single fuel source, often natural gas. The two key components of a CHP system are an internal combustion reciprocating engine and an electric generator. The internal combustion reciprocating engine is provided to Tecogen by General Motors Company modified to run on natural gas and is a low-cost, mass-produced, internal combustion engine that is used primarily in light trucks and sport utility vehicles. The clean natural gas fired engine spins a generator to produce electricity. The natural byproduct of the working engine is heat. The heat is captured and used to supply space heating, heating domestic hot water, laundry hot water or to provide heat for swimming pools and spas.

EUROSITE POWER INC.The Company will also purchase energy equipment from Ilios. Based on management estimates, the equipment developed by Ilios, such as a high efficiency water heater, provides twice the efficiency of conventional boilers for commercial and industrial applications utilizing advanced thermodynamic principles. The Ilios products incorporate mechanical work to extract heat from the environment in order to supplement the chemical energy available in the fuel. The result is a significant boost in efficiency and reduction in carbon emissions.

As other power sources that use alternative energy technologies mature to the point that they are reliable and economical, we may consider employing them to supply energy for our customers. We regularly assess the technical, economic, and reliability issues associated with systems that use solar, micro-turbine or fuel cell technologies to generate power.

The Company and its Affiliates American DG Energy, GlenRose Instruments, Tecogen and Ilios, are affiliated companies by virtue of common ownership. Specifically, John N. Hatsopoulos who is the Chairman of the Company is: (a) the Chief Executive Officer and director of American DG Energy and holds 12.2% of the company's common stock, (b) the Chief Executive Officer and director of Tecogen and holds 27.6% of the company's common stock, (c) a director of Ilios and holds 7.3% of the company's common stock, and (d) the Chairman of GlenRose Instruments and holds 15.7% of the company's common stock. Dr. George N. Hatsopoulos, who is John N. Hatsopoulos' brother, is: (a) a director of American DG Energy and holds 14.7% of the company's common stock, (b) a director of Tecogen and holds 26.2% of the company's common stock, (c) an investor in Ilios and holds 2.9% of the company's common stock and (d) an investor of GlenRose Instruments and holds 15.7% of the company's common stock.

Background and Market The delivery of energy services to commercial and residential customers has evolved over many decades into an inefficient and increasingly unreliable structure. Power for lighting, air conditioning, refrigeration, communications and computing demands comes almost exclusively from centralized power plants serving users through a complex grid of transmission and distribution lines and substations. Even with continuous improvements in central station generation and transmission technologies, today's power industry according to the Energy Information Administration is only about 33% efficient, meaning that it discharges to the environment roughly twice as much heat as the amount of electrical energy delivered to end-users. Since coal accounts for a large part of electric power generation, these inefficiencies are a major contributor to rising atmospheric CO2 emissions. Countermeasures being sought to limit global warming are expected to favor the deployment of alternative energy technologies.

Most thermal energy for space heating and hot water services is produced by on-site boilers and furnaces that burn either natural gas or petroleum distillate fuels. This separation of thermal and electrical energy supply services has persisted despite a general recognition that CHP can be significantly more energy efficient than central generation of electricity only.

Except in large-scale industrial applications (e.g., paper and chemical manufacturing), cogeneration has not attained general acceptance. This has been due, in part, to the long-established monopoly-like structure of the regulated utility industry. Also, the technologies previously available for small on-site cogeneration systems were incapable of delivering the reliability, cost and environmental performance necessary to displace or even substantially modify the established power industry structure.

The Role of Distributed Generation Distributed Generation is the production of two sources or two types of energy (electricity or cooling and heat) from a single energy source (natural gas). We will use technology that utilizes a low-cost, mass-produced, internal combustion engine from General Motors, used primarily in light trucks and sport utility vehicles that is modified to run on natural gas. The engine spins either a standard generator to produce electricity, or a conventional compressor to produce cooling. For heating, since the working engine generates heat, we capture the byproduct heat with a heat exchanger and utilize the heat for facility applications in the form of space heating and hot water for buildings or industrial facilities. This process is very similar to an automobile, where the engine provides the motion to the automobile and the byproduct heat is used to keep the passengers warm during the winter months. For refrigeration or cooling, standard available equipment uses an electric motor to spin a conventional compressor to make cooling. We will replace the electric motor with the same modified engine that runs on natural gas to spin the compressor to run a refrigeration cycle and produce cooling.

EUROSITE POWER INC.Distributed generation refers to the application of small-scale energy production systems, including electricity generators, at locations in close proximity to the end-use loads that they serve. Integrated energy systems, operating at user sites but interconnected to existing electric distribution networks, can reduce demand on the nation's utility grid, increase energy efficiency, avoid the waste inherent in long distance wire and cable transmission of electricity, reduce air pollution and greenhouse gas emissions, and protect against power outages, while,in most cases, significantly lowering utility costs for power users and building operators.

Until recently, many DG technologies have not been a feasible alternative to traditional energy sources because of economic, technological and regulatory considerations. Even now, many "alternative energy" technologies (such as solar, wind, fuel cells and micro-turbines) have not been sufficiently developed or proven to economically meet the demands of commercial users or the ability to be connected to the existing utility grid.

When we commence operations we intend to supply cogeneration systems that are capable of meeting the demands of commercial users and that can be connected to the existing utility grid. Specific advantages of the Company's On-Site Utility approach of multiple energy services, compared with traditional centralized generation and distribution of electricity alone, include the following: Greatly increased overall energy efficiency (up to 90% versus less than 33% for the existing power grid), according to the Environmental and Energy Study Institute, or EESI1.

Rapid adaptation to changing demand requirements (e.g., weeks, not years to add new generating capacity where and when it is needed).

Ability to by-pass transmission line and substation bottlenecks in congested service areas.

Avoidance of site and right-of-way issues affecting large-scale power generation and distribution projects.

Clean operation, from using natural gas fired reciprocating engines using microprocessor combustion controls and low-cost exhaust catalyst technology developed for automobiles.

Rapid economic paybacks for equipment investments, often three to five years when compared to existing utility costs and technologies.

Relative insensitivity to fuel prices due to high overall efficiencies achieved with cogeneration of electricity and thermal energy services, including the use of waste heat to operate absorption type air conditioning systems (displacing electric-powered cooling capacity at times of peak summer demand).

Reduced vulnerability of multiple de-centralized small-scale generating units compared to the risk of major outages from natural disasters or terrorist attacks against large central-station power plants and long distance transmission lines.

Ability to remotely monitor, control and dispatch energy services on a real-time basis using advanced switchgear, software, microprocessor and internet modalities. Through our on-site energy products and services, energy users will be able to optimize, in real time, the mix of centralized and distributed electricity-generating resources.

Also, DG systems possess significant positive environmental impact. The United States Environmental Protection Agency, or EPA, has created a Combined Heat and Power Partnership to promote the benefits of DG systems. The Company is a member of this Partnership. The following statement is found on the EPA web site.

"Combined heat and power systems offer considerable environmental benefits when compared with purchased electricity and onsite-generated heat. By capturing and utilizing heat that would otherwise be wasted from the production of electricity, CHP systems require less fuel than equivalent separate heat and power systems to produce the same amount of energy. Because less fuel is combusted, greenhouse gas emissions, such as carbon dioxide (CO2), as well as criteria air pollutants like nitrogen oxides (NOx) and sulfur dioxide (SO2), are reduced.2" The disadvantages of the Company's On-Site Utility are: Cogeneration is a mechanical process and our equipment will be susceptible to downtime or failure.

1 See Environmental and Energy Study Institute (EESI), Energy Generation and Distribution Efficiency, http://www.eesi.org/generation_distribution. This website address and any other website addresses included in this Annual Report on Form 10-K are included as textual references only and the information in such websites is not incorporated by reference into this Annual Report on Form 10-K.

2 See: http://epa.gov/chp/basic/environmental.html. This website address and any other website addresses included in this Annual Report on Form 10-K are included as textual references only and the information in such websites is not incorporated by reference into this Annual Report on Form 10-K.

EUROSITE POWER INC.

The base-rate of an electric utility is determined by a certain number of subscribers. DG at a significant scale may reduce the number of subscribers and therefore it may increase the base-rate for the electric utility for its customer base.

By committing to our long-term agreements, a customer may be forfeiting the opportunity to use more efficient technology that may become available in the future.

The DG Market Opportunity We believe that our primary near-term opportunity for DG energy and equipment sales is where commercial electricity rates exceed $0.12 per kWh. Attractive DG economics in the United Kingdom and Europe are currently attainable in applications that include hospitals, nursing homes, multi-tenant residential housing, hotels, schools and colleges, recreational facilities, food processing plants, dairies and other light industrial facilities.

Early in 2010, American DG Energy performed a feasibility study of the European market to determine the viability of expanding its On-Site Utility business into Europe. This study and business plan report reached the conclusions that: (a) there is untapped customer demand to provide small-scale CHP packages in the commercial sector through a fully financed, output-based electricity and hot water contract, (b) there is a lack of competition in this space in the target customer segments (hotel, healthcare and multi-tenant residential) and (c) the underlying economic fundamentals are attainable, with a combination of sufficient spark spreads and government fiscal support.

The study analyzed the entire European market; however it focused on the United Kingdom, Spain and Belgium as the primary markets to start operations. The study estimated that there are over 13,700 sites in those three countries providing a $900 million annual electricity market plus a $600 million heat and hot water energy market, for a combined market potential of $1.5 billion. The data used to calculate the Company's market potential is derived by Company estimates.

However, our business model is untested in the United Kingdom and Europe, and we have not installed any equipment there and have no customer contracts there. It is extremely difficult to predict whether we will achieve any success in developing our business. There can be no assurance that we will generate revenues or that revenues will generate profits or be sufficient to maintain our business. American DG Energy, our parent, has experienced total net losses since inception of approximately $17.9 million. For the foreseeable future, we expect to experience continuing operating losses and negative cash flows from operations as our management attempts to execute our current business plan." Business Model Our parent, American DG Energy is an onsite energy company that sells energy in the form of electricity, heat, hot water and air conditioning under long-term contracts with commercial, institutional and light industrial customers. We intend to implement our parent's business strategy in the United Kingdom and Europe by installing our systems at no cost to our customers and retaining ownership of the system. Because our systems may operate at up to 90% efficiency, according to the EESI (versus less than 33% for the existing power grid), we expect to be able to sell the energy produced by these systems to our customers at prices below their existing cost of electricity (or air conditioning), heat and hot water. Our cogeneration systems will consist of natural gas-powered internal combustion engines that drive an electrical generator to produce electricity and that capture the engine heat to produce space heating and hot water. Our energy systems may also be configured to drive a compressor that produces air conditioning and that also captures the engine heat.

To date, American DG Energy's installations all run in conjunction with the electric utility grid and require standard interconnection approval from the local utility. Our customers use both our energy system and the electric utility grid for their electricity requirements. We will typically supply the first 20% to 60% of the building's electricity requirements while the remaining electricity is supplied by the electric utility grid. Our customers will be contractually bound to use the energy we supply.

To date, the price that American DG Energy has charged its customers is set forth in customer contracts at a discount to the price of the building's local electric utility. For the 20% to 60% portion of the customer's electricity that is supplied, the customer realizes immediate savings on its electric bill. In addition to electricity, it sells the heat and hot water at the same price the customer was previously paying or at a discount equivalent to the customer's discount on electricity. Air conditioning systems are also priced at a discount so that the customer realizes overall cost savings from the installation.

Since we intend to own and operate the energy systems and since customers have no investment in the units, we expect that our customers will benefit from no capital requirements and no operating responsibilities. We will operate the energy systems so our customers require no staff and have no energy system responsibilities; they are bound, however, to pay for the energy supplied by the energy systems over the term of the agreement.

EUROSITE POWER INC.Energy and Products Portfolio We will provide the same full range of CHP product and energy options that are provided by American DG Energy, including: Energy Sales Energy Producing Products Turnkey Installation Energy Producing Products with Incentives Other Revenue Opportunities Energy Sales For customers seeking an alternative to the outright purchase of CHP equipment, we will install, maintain, finance, own and operate complete on-site CHP systems that supply, on a long-term, contractual basis, electricity and other energy services. Our business model is to sell the energy to customers at a guaranteed discount rate to the rates charged by conventional utility suppliers. Customers will be billed monthly and benefit from a reduction in their current energy bills without the capital costs and risks associated with owning and operating a cogeneration or chiller system. Also, by outsourcing the management and financing of on-site energy facilities to us, they will reap the economic advantages of DG without the need for retaining specialized in-house staff with skills unrelated to their core business. Customers will benefit from our On-Site Utility in a number of ways: Guaranteed lower price for energy Only pay for the energy they use No capital costs for equipment, engineering and installation No equipment operating costs for fuel and maintenance Immediate cash flow improvement Significant green impact by the reduction of carbon produced No staffing, operations and equipment responsibility Our customers will pay us for energy produced on site at a rate that is a certain percentage below the rate at which the utility companies provide them electrical and natural gas services. We will measure the actual amount of electrical and thermal energy produced, and charge our customers accordingly. We intend to install, operate, maintain and repair our energy systems at our sole cost and expense. We also intend to obtain any necessary permits or regulatory approvals at our sole expense. Our agreements will generally be for a term of 15 years, renewable for two additional five years terms upon the mutual agreement of the parties.

In regions where high electricity rates prevail, monthly payments for CHP energy services can yield attractive paybacks (e.g. often 3-5 years) on our investments in On-Site Utility projects. We expect the price of natural gas to have a minor effect on the financial returns obtained from our energy service contracts because the value of hot water and other thermal services produced from the recovered heat generated by the internal combustion engine in our On-Site Utility system will increase in proportion to higher fuel costs. This recovered energy, which comprises up to 60% of the total heating value of fuel supplied to the CHP equipment, displaces fuel that would otherwise be burned in conventional boilers.

Energy Producing Products We intend to offer cogeneration units sized to produce 100 kW of electricity, water chillers sized to produce 200 to 400 tons of cooling and high efficiency water heaters. For cogeneration, we prefer a modular design approach to allow us to group multiple units together to serve customers with considerably larger power requirements. Often, cogeneration units are conveniently dispersed within a large operation, such as a hospital or campus, serving multiple process heating systems that would otherwise be impractical to serve from a single large machine. The equipment we select often yield overall energy efficiencies in excess of 80% (from our equipment supplier's specifications).

EUROSITE POWER INC.We will also purchase energy equipment that incorporates mechanical work to extract heat from the environment in order to supplement the chemical energy available in the fuel. The result of that equipment is a significant boost in efficiency and carbon emissions benefit relative to conventional heating systems.

Many other DG technologies are challenged by technical, economic and reliability issues associated with systems that generate power using solar, micro-turbine or fuel cell technologies, which have not yet proven to be economical for typical customer needs. As other power sources that use alternative energy technologies mature to the point that they are reliable and economical, we may consider employing them to supply energy for our customers.

Service and Installation Where appropriate, we intend to utilize the best local service infrastructure for the equipment we deploy. We will require long-term maintenance contracts and ongoing parts sales. Our centralized remote monitoring capability will allow us to keep track of our equipment in the field. Our installations will be performed by local contractors with experience in energy cogeneration systems.

For the occasional customers that want to own the CHP system themselves, we will offer our "turn-key" option whereby we will sell equipment and provide systems engineering, installation, interconnect approvals, on-site labor and startup services needed to bring the complete CHP system on-line. For some customers, we will also require a fee to operate the systems and may receive a portion of the savings generated from the equipment.

Other Funding and Revenue Opportunities The Company may be able to participate in the demand response market and receive payments due to the availability of its energy systems when operations commence.

Demand response programs provide payments for either the reduction of electricity usage or the increase in electricity production during periods of peak usage throughout a utility territory. Since our systems are highly efficient, when we commence operations, we may be able to participate in various carbon reduction markets. We are currently not involved in any such activity as described above.

Sales and Marketing We intend to offer cogeneration units sized to produce 100 kW of electricity and water chillers sized to produce 200 to 400 tons of cooling. Our On-Site Utility services will be sold directly to end-users by our in-house marketing team and by established sales agents and representatives. In July 2011, we hired a Managing Director in the United Kingdom to put together a sales and marketing team in order to generate revenues from equipment installations. We will also hire service and support staff, but do not expect to expend significant funds in filling those positions. As of the date of this Annual Report on Form 10-K, the Company did not have any operations, has not generated revenues or sold any energy systems.

Our On-Site Utility services will be sold directly to end-users by our in-house marketing team and by established sales agents and representatives. We will offer standardized packages of energy, equipment and services suited to the needs of property owners and operators in healthcare, hospitality, large residential, athletic facilities and certain industrial sites. This includes national accounts and other customer groups having a common set of energy requirements at multiple locations.

Our energy offering is translated into direct financial gain for our clients, and is best appreciated by senior management. These clients recognize the gain in cash flow, the increase in net income and the preservation of capital we offer. As such, our energy sales will be focused on reaching these decision makers.

We also intend to expand our sales efforts by developing joint marketing initiatives with key industry suppliers. Particularly important will be collaborative programs with natural gas utility companies. Since the economic viability of any CHP project is critically dependent upon effective utilization of recovered heat, the insight of the gas supplier to the customer energy profile is particularly effective in prospecting the most cost-effective DG sites in any region.

DG is currently enjoying growing support among utility regulators seeking to increase the reliability of electricity supply with cost effective environmentally responsible demand-side resources. Many European countries encourage DG through inter-connecting standards, incentives and/or supply planning. Unlike large central station power plants, DG investments can be made in small increments and with lead-times as short as just a few months.

European governments are developing and refining various funding opportunities related to economic incentives and programs for DG operators. Our CHP systems may fit very well with these programs. Other than funding opportunities related to incentives and programs, there does not appear to be any new government regulations that will affect us.

EUROSITE POWER INC.

Competition We believe that the main competition for DG products is the established electric utility infrastructure. DG is beginning to gain acceptance in regions where energy customers are dissatisfied with the cost and reliability of traditional electricity service. These end-users, together with growing support from regulators, are creating a favorable climate for the growth of DG that is overcoming the objections of established utility providers. Those companies are much larger than us in terms of revenues, assets and resources. We expect to compete with large utility companies by selling its electricity to the same commercial building customers at a lower price. We will sell directly to each building customer, but typically only supply 20%-60% of the electricity needs of the building. The remaining portion will be supplied by the electric utility.

In the United Kingdom, we will primarily compete with Cogenco Limited, a subsidiary of Dalkia PLC, an alternative energy company with customers in the 50-500 kW range, ENER-G Holdings plc and Jenbacher, a subsidiary of General Electric Company. Other companies in the same market are Clarke Energy Ltd, EC Power Systems and Baxi-SenerTec UK. In Belgium, most CHP equipment manufacturers are non-Belgian companies, including CogenGreen S.A., Capstone Turbine Corporation and Cummins Power Generation Inc., which will be our primary competitors in the 50-500 kW range. In Spain, we will compete with Baxi-SenerTec UK, MicroPower Europe, Guascor Power, Cummins Power Generation Inc., Icogen SA and Pasch y Cia SA. Icogen SA, based in Barcelona, is the leading Spanish supplier for systems below 500 kW.

Engine manufacturers sell DG units that range in size from a few kWs to many MWs in size. Those manufacturers are predominantly greater than 1 MW and include Caterpillar Inc., Cummins Power Generation Inc., and Waukesha, a subsidiary of General Electric Company. In many cases, we view these companies as potential suppliers of equipment and not as competitors.

The alternative energy market is emerging rapidly. Many companies are developing alternative and renewable energy sources including solar power, wind power, fuel cells and micro-turbines. Some of the companies in this sector include General Electric Company, BP p.l.c, Royal Dutch Shell, SunEdison, a division of MEMC Electronic Materials, Inc. and Evergreen Solar, Inc. (in the solar energy space); Plug Power, Inc. and FuelCell Energy, Inc. (in the fuel cell space); and Capstone Turbine Corporation, Ingersoll Rand PLC and Elliott Turbomachinery, a division of the Elliott Group, Inc. (in the micro-turbine space). The effect of these developing technologies on our business is difficult to predict; however, when their technologies become more viable for our target markets, we may be able to adopt their technologies into our business model.

There are a number of energy service companies that offer related services.

These companies include Siemens AG, Honeywell International Inc. and Johnson Controls Inc. In general, these companies seek large, diverse projects for electric demand reduction for campuses that include building lighting and controls, and electricity (in rare occasions) or cooling. Because of their overhead structures, these companies often solicit large projects and stay away from individual properties. Since we will focus on smaller projects for energy supply, we will be well suited to work in tandem with these companies when the opportunity arises.

There are also a few local emerging cogeneration developers and contractors that are attempting to offer services similar to ours. To be successful, they will need to have the proper experience in equipment and technology, installation contracting, equipment maintenance and operation, site economic evaluation, project financing and energy sales plus the capability to cover a broad region.

Government Regulation We are not subject to extensive government regulation. We are required to file for local construction permits (electrical, mechanical and the like) and utility interconnects and we must make various filings in certain jurisdictions related to environmental emissions. Other than funding opportunities related to incentives and programs, there does not appear to be any new government regulations that may affect us.

Employees As of December 31, 2011, we had twelve employees, including four full time employees and one part time employee in the United Kingdom and seven part time employees in the United States. We believe that our relationship with our employees is satisfactory. None of our employees are represented by a collective bargaining agreement.

EUROSITE POWER INC.

distributions, any unwillingness on the part of lenders to make loans to us and any deterioration in the financial position of lenders that might make them unable to meet their obligations to us. If these conditions continue and we cannot raise funds through a public or private debt financing, or an equity offering, our ability to grow our business may be negatively affected and the Company may need to suspend any new installation of energy systems and significantly reduce its operating costs until market conditions improve.

Seasonality The majority of our heating systems sales are in the winter and the majority of our chilling systems sales are in the summer.

Inflation We install, maintain, finance, own and operate complete on-site CHP systems that supply, on a long-term, contractual basis, electricity and other energy services. We sell the energy to customers at a guaranteed discount rate to the rates charged by conventional utility suppliers. Our customers benefit from a reduction in their current energy bills without the capital costs and risks associated with owning and operating a CHP or chiller system. Inflation will cause an increase in the rates charged by conventional utility suppliers, and since we bill our customers based on the electric utility rates, our pricing will increase in tandem and positively affect our revenue. However, inflation might cause both our investment and cost of goods sold to increase, therefore lowering our return on investment and depressing our gross margins.

Off-Balance Sheet Arrangements We do not have any off-balance sheet arrangements, including any outstanding derivative financial statements, off-balance sheet guarantees, interest rate swap transactions or foreign currency contracts. We do not engage in trading activities involving non-exchange traded contracts.

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